diff -Nru parley-17.12.3/.arcconfig parley-18.04.1/.arcconfig
--- parley-17.12.3/.arcconfig	1970-01-01 00:00:00.000000000 +0000
+++ parley-18.04.1/.arcconfig	2018-05-02 12:17:01.000000000 +0000
@@ -0,0 +1,3 @@
+{
+  "phabricator.uri" : "https://phabricator.kde.org/"
+}
diff -Nru parley-17.12.3/CMakeLists.txt parley-18.04.1/CMakeLists.txt
--- parley-17.12.3/CMakeLists.txt	2018-03-06 00:13:52.000000000 +0000
+++ parley-18.04.1/CMakeLists.txt	2018-05-08 00:10:53.000000000 +0000
@@ -1,6 +1,12 @@
 cmake_minimum_required(VERSION 3.0.0)
 
-project(parley)
+# KDE Application Version, managed by release script
+set(KDE_APPLICATIONS_VERSION_MAJOR "18")
+set(KDE_APPLICATIONS_VERSION_MINOR "04")
+set(KDE_APPLICATIONS_VERSION_MICRO "1")
+set(KDE_APPLICATIONS_VERSION "${KDE_APPLICATIONS_VERSION_MAJOR}.${KDE_APPLICATIONS_VERSION_MINOR}.${KDE_APPLICATIONS_VERSION_MICRO}")
+
+project(parley VERSION ${KDE_APPLICATIONS_VERSION})
 
 find_package(ECM 5.15.0 REQUIRED NO_MODULE)
 
@@ -74,6 +80,9 @@
    ${CMAKE_CURRENT_BINARY_DIR}/config-parley.h
 )
 
+# let our config-parley.h be found first in any case
+include_directories (BEFORE ${CMAKE_CURRENT_BINARY_DIR})
+
 
 
 # Define link libs for parley executable and unittests
diff -Nru parley-17.12.3/config-parley.h.cmake parley-18.04.1/config-parley.h.cmake
--- parley-17.12.3/config-parley.h.cmake	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/config-parley.h.cmake	2018-05-02 12:17:01.000000000 +0000
@@ -2,3 +2,7 @@
 #cmakedefine HAVE_LIBXSLT 1
 /* xrender available for fading pixmaps */
 #cmakedefine HAVE_XRENDER 1
+
+/* Parleys application version string
+ * It is adopted from script updated KDE Application version in top-level CMakeLists.txt */
+#define PARLEY_VERSION_STRING "@parley_VERSION@"
diff -Nru parley-17.12.3/debian/changelog parley-18.04.1/debian/changelog
--- parley-17.12.3/debian/changelog	2018-03-12 21:37:11.000000000 +0000
+++ parley-18.04.1/debian/changelog	2018-05-08 12:36:41.000000000 +0000
@@ -1,8 +1,16 @@
-parley (4:17.12.3-0ubuntu1~ubuntu18.04~ppa1) bionic; urgency=medium
+parley (4:18.04.1-0ubuntu1~ubuntu18.04~ppa1) bionic; urgency=medium
+
+  * New upstream release (18.03.80)
+  * New upstream release (18.04.0)
+  * New upstream release (18.04.1)
+
+ -- Rik Mills <rikmills@kubuntu.org>  Tue, 08 May 2018 13:36:41 +0100
+
+parley (4:17.12.3-0ubuntu1) bionic; urgency=medium
 
   * New upstream release (17.12.3)
 
- -- Rik Mills <rikmills@kubuntu.org>  Mon, 12 Mar 2018 21:37:11 +0000
+ -- Rik Mills <rikmills@kubuntu.org>  Fri, 16 Mar 2018 13:34:10 +0000
 
 parley (4:17.12.2-0ubuntu1) bionic; urgency=medium
 
diff -Nru parley-17.12.3/debian/control parley-18.04.1/debian/control
--- parley-17.12.3/debian/control	2018-03-12 21:37:11.000000000 +0000
+++ parley-18.04.1/debian/control	2018-05-08 12:36:41.000000000 +0000
@@ -8,7 +8,7 @@
                extra-cmake-modules (>= 5.31.0~),
                imagemagick,
                kross-dev (>= 5.31.0~),
-               libkeduvocdocument-dev (>= 4:17.12.3~),
+               libkeduvocdocument-dev (>= 4:18.04.1~),
                libkf5config-dev (>= 5.31.0~),
                libkf5coreaddons-dev (>= 5.31.0~),
                libkf5crash-dev (>= 5.31.0~),
diff -Nru parley-17.12.3/org.kde.parley.appdata.xml parley-18.04.1/org.kde.parley.appdata.xml
--- parley-17.12.3/org.kde.parley.appdata.xml	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/org.kde.parley.appdata.xml	2018-05-02 12:17:01.000000000 +0000
@@ -154,7 +154,7 @@
       <li>Mixed Letters (order the letters of a word)</li>
       <li xml:lang="bs">Miješana slova (redoslijed slova riječi)</li>
       <li xml:lang="ca">Lletres barrejades (ordre de les lletres d'una paraula)</li>
-      <li xml:lang="ca-valencia">Lletres barrejades (orde de les lletres d'una paraula)</li>
+      <li xml:lang="ca-valencia">Lletres barrejades (ordre de les lletres d'una paraula)</li>
       <li xml:lang="de">Gemischte Buchstaben (Buchstaben in der richtigen Reihenfolge anordnen)</li>
       <li xml:lang="el">Ανάμειξη γραμμάτων (ταξινομήστε τα γράμματα μιας λέξης)</li>
       <li xml:lang="en-GB">Mixed Letters (order the letters of a word)</li>
diff -Nru parley-17.12.3/plugins/example.desktop parley-18.04.1/plugins/example.desktop
--- parley-17.12.3/plugins/example.desktop	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/plugins/example.desktop	2018-05-02 12:17:01.000000000 +0000
@@ -53,7 +53,7 @@
 Comment=This example script offers two actions: 1) Move selected vocabulary to a different lesson 2) Change the grade of selected words to known (highest grade)
 Comment[bs]=Ovaj primjer skripte nudi dvije akcije: 1) Premjesti odabranu riječ u drugu lekciju 2) Promijeni stepen odabranih riječi na poznate (najviši stepen)
 Comment[ca]=Aquest script d'exemple ofereix dues accions: 1) Moure el vocabulari seleccionat cap a una lliçó diferent; 2) canviar el grau dels mots seleccionats a «conegut» (el grau més alt)
-Comment[ca@valencia]=Este script d'exemple ofereix dues accions: 1) Moure el vocabulari seleccionat cap a una lliçó diferent; 2) canviar el grau dels mots seleccionats a «conegut» (el grau més alt)
+Comment[ca@valencia]=Aquest script d'exemple ofereix dues accions: 1) Moure el vocabulari seleccionat cap a una lliçó diferent; 2) canviar el grau dels mots seleccionats a «conegut» (el grau més alt)
 Comment[cs]=Tento ukázkový skript nabízí dvě činnosti: 1) Přesun vybrané slovní zásoby do jiné lekce, 2) Změna hodnocení vybraných slov na "známé" (nejvyšší hodnotící stupeň)
 Comment[da]=Dette script-eksempel tilbyder to handlinger: 1) Flyt markeret ordforråd til en anden lektion 2) Ændr niveauet for udvalgt ord til kendt (højeste niveau)
 Comment[de]=Dieses Beispielskript bietet zwei Möglichkeiten an: 1) Das ausgewählte Vokabular in eine andere Lektion verschieben 2) Den Bekanntheitsgrad auf „bekannt“ (höchste Stufe) setzen
diff -Nru parley-17.12.3/plugins/wiktionary/wiktionary_sound.desktop parley-18.04.1/plugins/wiktionary/wiktionary_sound.desktop
--- parley-17.12.3/plugins/wiktionary/wiktionary_sound.desktop	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/plugins/wiktionary/wiktionary_sound.desktop	2018-05-02 12:17:01.000000000 +0000
@@ -50,7 +50,7 @@
 Comment=This script fetches sound files from http://commons.wikimedia.org.
 Comment[bs]=Ova skripta dohvaća zvučne datoteke iz http://commons.wikimedia.org.
 Comment[ca]=Aquest script recupera fitxers de so des de http://commons.wikimedia.org.
-Comment[ca@valencia]=Este script recupera fitxers de so des de http://commons.wikimedia.org.
+Comment[ca@valencia]=Aquest script recupera fitxers de so des de http://commons.wikimedia.org.
 Comment[cs]=Tento skript stahuje zvuk z  http://commons.wikimedia.org.
 Comment[da]=Dette script henter lydfiler fra http://commons.wikimedia.org.
 Comment[de]=Dieses Skript lädt Klangdateien von http://commons.wikimedia.org.
diff -Nru parley-17.12.3/po/ar/parley.po parley-18.04.1/po/ar/parley.po
--- parley-17.12.3/po/ar/parley.po	2018-03-06 00:13:50.000000000 +0000
+++ parley-18.04.1/po/ar/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -9,7 +9,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2007-10-14 15:44+0000\n"
 "Last-Translator: Youssef Chahibi <chahibi@gmail.com>\n"
 "Language-Team: <en@li.org>\n"
@@ -362,7 +362,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, fuzzy, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "احفظ نشط مستند مع a مختلف الاسم"
@@ -503,14 +503,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, fuzzy, kde-format
 msgid "Adjective"
 msgstr "نشط"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr ""
@@ -625,21 +625,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, fuzzy, kde-format
 msgid "Masculine"
 msgstr "ذكر:"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, fuzzy, kde-format
 msgid "Feminine"
 msgstr "مؤكّد"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, fuzzy, kde-format
 msgid "Neuter"
 msgstr "محايد:"
@@ -940,13 +940,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, fuzzy, kde-format
 msgid "Verb"
 msgstr "الفعل:"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, fuzzy, kde-format
 msgid "Noun"
 msgstr "لا شيء"
@@ -1372,7 +1372,7 @@
 msgid "This word type folder contains verbs."
 msgstr ""
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, fuzzy, kde-format
 msgid "Conjunction"
 msgstr "الإقتران"
@@ -1796,23 +1796,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "احفظ نشط مستند مع a مختلف الاسم"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, fuzzy, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "خصائص %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, fuzzy, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "افتح المفردات مستند"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1822,23 +1822,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, fuzzy, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "كتابة ملفّ بوصة خطأ 2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "افتح المفردات مستند"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, fuzzy, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1846,12 +1846,12 @@
 "Save file before exit?\n"
 msgstr "المفردات هو معدّل n ملفّ قبل خروج n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, fuzzy, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "التنزيلات جديد"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1860,23 +1860,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, fuzzy, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "كتابة ملفّ بوصة خطأ 2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, fuzzy, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "احفظ ملف"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, fuzzy, kde-format
 msgid "Save Vocabulary As"
 msgstr "احفظ المفردات ك"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, fuzzy, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
@@ -1884,14 +1884,14 @@
 "<qt> الـ ملفّ<p><b></b></p> موجود تنفيذ إلى كتابة فوقية :: كتابة على "
 "الإيطالية</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, fuzzy, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "حفظ %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr ""
@@ -1899,34 +1899,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, fuzzy, kde-format
 msgid "Languages"
 msgstr "اللغات"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, fuzzy, kde-format
 msgid "A Second Language"
 msgstr "A الثّانية اللغة"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, fuzzy, kde-format
 msgid "Lesson 1"
 msgstr "الدرس 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "افتح مستند"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "ابدأ الممارسة."
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "افتح مستند"
@@ -3223,6 +3223,13 @@
 msgid "Visible columns in the main editor window."
 msgstr ""
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4290,18 +4297,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "احذف الكل من إختبار."
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "احذف الكل من إختبار."
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "احذف الكل من إختبار."
@@ -4338,17 +4345,17 @@
 msgid "Not practiced"
 msgstr "لا:"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 msgid "Mixed Directions"
 msgstr "مختلط حروف"
@@ -4431,7 +4438,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/ast/parley.po parley-18.04.1/po/ast/parley.po
--- parley-17.12.3/po/ast/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/ast/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -6,7 +6,7 @@
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2016-12-21 16:37+0100\n"
 "Last-Translator: enolp <enolp@softastur.org>\n"
 "Language-Team: Asturian <alministradores@softastur.org>\n"
@@ -347,7 +347,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr ""
@@ -488,14 +488,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr ""
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr ""
@@ -610,21 +610,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr ""
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr ""
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr ""
@@ -924,13 +924,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr ""
@@ -1348,7 +1348,7 @@
 msgid "This word type folder contains verbs."
 msgstr ""
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr ""
@@ -1768,23 +1768,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr ""
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr ""
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr ""
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1794,23 +1794,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr ""
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1818,12 +1818,12 @@
 "Save file before exit?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr ""
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1832,36 +1832,36 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr ""
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr ""
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr ""
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr ""
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr ""
@@ -1869,34 +1869,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr ""
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr ""
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr ""
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr ""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr ""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr ""
@@ -3169,6 +3169,13 @@
 msgid "Visible columns in the main editor window."
 msgstr ""
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4236,18 +4243,18 @@
 msgid "Alt+2"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr ""
@@ -4284,17 +4291,17 @@
 msgid "Not practiced"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr ""
@@ -4377,7 +4384,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/bg/parley.po parley-18.04.1/po/bg/parley.po
--- parley-17.12.3/po/bg/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/bg/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -7,7 +7,7 @@
 msgstr ""
 "Project-Id-Version: kvoctrain\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2011-07-19 21:04+0300\n"
 "Last-Translator: Yasen Pramatarov <yasen@lindeas.com>\n"
 "Language-Team: Bulgarian <dict@linux.zonebg.com>\n"
@@ -385,7 +385,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, fuzzy, kde-format
 #| msgid "Save the active vocabulary document with a different name"
 msgid "Open this vocabulary collection in the editor"
@@ -540,7 +540,7 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, fuzzy, kde-format
 #| msgid "Acti&ve"
 msgid "Adjective"
@@ -548,7 +548,7 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Наречие"
@@ -670,7 +670,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, fuzzy, kde-format
 #| msgid "&Male:"
 msgid "Masculine"
@@ -678,7 +678,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, fuzzy, kde-format
 #| msgid "Definite"
 msgid "Feminine"
@@ -686,7 +686,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, fuzzy, kde-format
 #| msgid "Neu&tral:"
 msgid "Neuter"
@@ -1006,13 +1006,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Глагол"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Съществително име"
@@ -1461,7 +1461,7 @@
 msgid "This word type folder contains verbs."
 msgstr ""
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, fuzzy, kde-format
 #| msgid "Conjugation"
 msgid "Conjunction"
@@ -1915,25 +1915,25 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Запис на текущия документ под друго име"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Информация за %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, fuzzy, kde-format
 #| msgid "Open a vocabulary document"
 msgid "Open Vocabulary Collection"
 msgstr "Отваряне на речник"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, fuzzy, kde-format
 #| msgid "Article"
 msgid "Open in practice &mode"
 msgstr "Член"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1943,24 +1943,24 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 #| msgid "Open a vocabulary document"
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Отваряне на речник"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1971,13 +1971,13 @@
 "\n"
 "Искате ли промените да бъдат записани?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, fuzzy, kde-format
 #| msgid "Downloads new vocabularies"
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Изтегляне на нови речници"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1986,24 +1986,24 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, fuzzy, kde-format
 #| msgid "Save File"
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Запис на файл"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Запис на речника като"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, fuzzy, kde-format
 #| msgid ""
 #| "<qt>The file<br><b>%1</b><br>already exists. Do you want to overwrite it?"
@@ -2014,14 +2014,14 @@
 "<qt>Файлът<br><b>%1</b><br>съществува. Сигурни ли сте, че искате да бъде "
 "презаписан?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Запис на %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr ""
@@ -2029,36 +2029,36 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Езици"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Втори език"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Урок 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 #| msgid "Open a vocabulary document"
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Отваряне на речник"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Could not read "
 msgid "Could not create temporary directory \"%1\""
 msgstr "Не може да се прочете "
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Open a vocabulary document"
 msgid "Could not save vocabulary collection \"%1\""
@@ -3425,6 +3425,13 @@
 msgid "Visible columns in the main editor window."
 msgstr ""
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4556,20 +4563,20 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove entries with same content from vocabulary"
 msgid "Remove confidence levels from this unit"
 msgstr "Премахвана от речника записи с едно и също съдържание"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Remove entries with same content from vocabulary"
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Премахвана от речника записи с едно и също съдържание"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Remove entries with same content from vocabulary"
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4612,19 +4619,19 @@
 msgid "Not practiced"
 msgstr "Още няма запитване"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, fuzzy, kde-format
 #| msgid "&Learning"
 msgid "Known to Learning"
 msgstr "&Обучение"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, fuzzy, kde-format
 #| msgid "&Learning"
 msgid "Learning to Known"
 msgstr "&Обучение"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Article"
 msgid "Mixed Directions"
@@ -4719,7 +4726,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/bs/parley.po parley-18.04.1/po/bs/parley.po
--- parley-17.12.3/po/bs/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/bs/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -7,7 +7,7 @@
 msgstr ""
 "Project-Id-Version: kdeedu\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2015-01-05 15:02+0000\n"
 "Last-Translator: Velid <velid.aljic@gmail.com>\n"
 "Language-Team: Bosnian <bs@li.org>\n"
@@ -367,7 +367,7 @@
 msgid "Fully learned"
 msgstr "Potpuno naučeno"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Otvori kolekciju rječnika u uređivaču"
@@ -508,14 +508,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Pridjev"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Prilog"
@@ -630,21 +630,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Muški rod"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Ženski rod"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Srednji rod"
@@ -947,13 +947,13 @@
 msgstr "&Poništite nivo samopouzdanja"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Glagol"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Imenica"
@@ -1376,7 +1376,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Ovaj folder vrsta riječi sadrži glagole."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Veznik"
@@ -1804,23 +1804,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Podijeli trenutni kolekciju rječnika sa ostalim korisnicima"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Svojstva za %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Otvori kolekciju rječnika"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Otvori u načinu za &vježbanje"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1835,23 +1835,23 @@
 "\n"
 "Da li želite da preuzmete brave?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Preuzmi bracu"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Otvaranje kolekcije \"%1\" rezultiralo greskom: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Otvori kolekciju"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1862,12 +1862,12 @@
 "\n"
 "Snimiti ga prije izlaska?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Otvori preuzetu kolekciju rječnika"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1880,36 +1880,36 @@
 "\n"
 "Želite li preuzeti bravu?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Pisanje u datoteku \"%1\" rezultiralo je greškom: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Snimi datoteku"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Snimi rječnik kao"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Datoteka<p><b>%1</b></p>već postoji. Želite li ju prebrisati?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Spremanje %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Javno vlasništvo"
@@ -1917,34 +1917,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Jezici"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Drugi jezik"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lekcija 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Ne mogu otvoriti kolekciju rječnika \"%1\""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Ne mogu pisati u datoteku \"%1\""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Nemoguce spasiti kolekciju vokabulara: \"%1\""
@@ -3282,6 +3282,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Vidljive kolone u glavnom prozoru uređivača."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4400,18 +4407,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Uklonite nivo samopouzdanja sa ove jedinice"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Uklonite nivo samopouzdanja sa ove jedinice i svih njenih podjedinica"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Uklonite nivo samopouzdanja sa ove jedinice i svih njenih podjedinica"
@@ -4448,17 +4455,17 @@
 msgid "Not practiced"
 msgstr "Nije vjezbano"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Poznato učenju"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Učenje poznatim"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Izmjesane upute"
@@ -4548,7 +4555,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/ca/parley.po parley-18.04.1/po/ca/parley.po
--- parley-17.12.3/po/ca/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/ca/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -1,19 +1,19 @@
 # Translation of parley.po to Catalan
-# Copyright (C) 2004-2017 This_file_is_part_of_KDE
+# Copyright (C) 2004-2018 This_file_is_part_of_KDE
 #
 # Sebastià Pla i Sanz <sps@sastia.com>, 2004.
 # Albert Astals Cid <aacid@kde.org>, 2004.
 # David Gil <al016950@yahoo.es>, 2005.
 # Orestes Mas Casals <orestes@tsc.upc.edu>, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014.
-# Josep Ma. Ferrer <txemaq@gmail.com>, 2007, 2008, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017.
+# Josep Ma. Ferrer <txemaq@gmail.com>, 2007, 2008, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018.
 # Manuel Tortosa <manutortosa@gmail.com>, 2009.
 # Antoni Bella Pérez <antonibella5@yahoo.com>, 2013, 2015, 2016, 2017.
 msgid ""
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
-"PO-Revision-Date: 2017-12-24 17:34+0100\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
+"PO-Revision-Date: 2018-01-27 17:15+0100\n"
 "Last-Translator: Josep Ma. Ferrer <txemaq@gmail.com>\n"
 "Language-Team: Catalan <kde-i18n-ca@kde.org>\n"
 "Language: ca\n"
@@ -363,7 +363,7 @@
 msgid "Fully learned"
 msgstr "Completament apresa"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Obre aquesta col·lecció de vocabulari a l'editor"
@@ -504,14 +504,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adjectiu"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Adverbi"
@@ -626,21 +626,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Masculí"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Femení"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neutre"
@@ -944,13 +944,13 @@
 msgstr "&Restableix els nivells de confiança"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verb"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Substantiu"
@@ -1376,7 +1376,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Aquesta carpeta conté verbs."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Conjunció"
@@ -1806,23 +1806,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Comparteix la col·lecció de vocabulari actual amb altres usuaris"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Propietats per a %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Obre una col·lecció de vocabulari"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Obre en &mode d'exercici"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1837,23 +1837,23 @@
 "\n"
 "Voleu ignorar el bloqueig?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Ignora el bloqueig"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "En obrir la col·lecció «%1» s'ha produït un error: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Obre una col·lecció"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1864,12 +1864,12 @@
 "\n"
 "Voleu desar el fitxer abans de sortir?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Obre una col·lecció de vocabulari descarregada"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1883,36 +1883,36 @@
 "\n"
 "Voleu ignorar el bloqueig?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "En escriure el fitxer «%1» s'ha produït un error: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Desa el fitxer"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Desa el vocabulari com a"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>El fitxer<p><b>%1</b></p>ja existeix. Voleu sobreescriure'l?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "S'està desant %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Domini públic"
@@ -1920,34 +1920,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Idiomes"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Un segon idioma"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lliçó 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "No s'ha pogut obrir la col·lecció de vocabulari «%1»"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "No s'ha pogut crear el directori temporal «%1»"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "No s'ha pogut desar la col·lecció de vocabulari «%1»"
@@ -3274,6 +3274,14 @@
 msgid "Visible columns in the main editor window."
 msgstr "Columnes visibles a la finestra principal de l'editor."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+"Elements de vista en arbre replegats a la finestra de vista d'estadístiques."
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4412,19 +4420,19 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Elimina els nivells de confiança d'aquesta unitat"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr ""
 "Elimina els nivells de confiança d'aquesta unitat i totes les subunitats"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr ""
@@ -4462,17 +4470,17 @@
 msgid "Not practiced"
 msgstr "No s'ha exercitat"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Del conegut al nou"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Del nou al conegut"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Direccions barrejades"
@@ -4555,7 +4563,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Recorda per a cada mode d'exercici"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
@@ -4706,3 +4714,271 @@
 "on es llisten molts documents de vocabulari:\n"
 "<a href=\"http://edu.kde.org/contrib/kvtml2.php\">http://edu.kde.org/contrib/"
 "kvtml2.php</a>.</p>\n"
+
+#~ msgid "Limit the number of words in the initial phase"
+#~ msgstr "Limita el nombre de paraules en la fase inicial"
+
+#~ msgid "Max number of words in the initial phase"
+#~ msgstr "Nombre màxim de paraules en la fase inicial"
+
+#~ msgid "I knew it well"
+#~ msgstr "Ho sabia bé"
+
+#~ msgid "Initial phase"
+#~ msgstr "Fase inicial"
+
+#~ msgid "Long term phase"
+#~ msgstr "Fase a llarg termini"
+
+#~ msgid "Invalid entry"
+#~ msgstr "Entrada no vàlida"
+
+#~ msgid "Newly started"
+#~ msgstr "S'ha iniciat novament"
+
+#~ msgid ""
+#~ "Error: ui file not found.\n"
+#~ "Check your installation."
+#~ msgstr ""
+#~ "Error: no s'ha trobat el fitxer ui.\n"
+#~ "Comproveu la vostra instal·lació."
+
+#~ msgid "Fetch Image"
+#~ msgstr "Vés a buscar la imatge"
+
+#~ msgid ""
+#~ "No Selection:\n"
+#~ "Select a word to fetch an image for it"
+#~ msgstr ""
+#~ "No heu fet cap selecció:\n"
+#~ "Seleccioneu una paraula per anar a cercar-ne una imatge escaient"
+
+#~ msgid "Fetches an image for the selected translation"
+#~ msgstr "Va a cercar una imatge per a la traducció escollida"
+
+#~ msgid "Give a keyword to search for an image related to it:"
+#~ msgstr "Entreu una paraula clau per cercar una imatge relacionada:"
+
+#~ msgid "Search"
+#~ msgstr "Cerca"
+
+#~ msgid "Free images only (creative commons, gpl, ...)"
+#~ msgstr "Només imatges lliures (gpl, creative commons,...)"
+
+#~ msgid "Previous"
+#~ msgstr "Anterior"
+
+#~ msgid ""
+#~ "Requires you to answer each question correctly 3 times in a row for it to "
+#~ "be counted as correct."
+#~ msgstr ""
+#~ "Us demana que respongueu cada pregunta correctament 3 vegades seguides "
+#~ "per tal que es computi com a correcta."
+
+#~ msgid "Require 3 consecutive correct answers"
+#~ msgstr "Requereix 3 respostes correctes consecutives"
+
+#~ msgid "Use the Leitner learning method"
+#~ msgstr "Usa el mètode d'aprenentatge Leitner"
+
+#~ msgid "Lessons"
+#~ msgstr "Lliçons"
+
+#, fuzzy
+#~| msgid "Base color for displaying grades:"
+#~ msgid "Color for displaying invalid units:"
+#~ msgstr "Color de base per a mostrar les puntuacions:"
+
+#~ msgid "Start practice instead of editor"
+#~ msgstr "Inicia l'exercici en lloc de l'editor"
+
+#~ msgid "&Start Page"
+#~ msgstr "&Pàgina d'inici"
+
+#~ msgid "Could not read collection from \"%1\""
+#~ msgstr "No s'ha pogut llegit la col·lecció de «%1»"
+
+#~ msgid "&Lesson"
+#~ msgstr "&Lliçó"
+
+#~ msgid "&Grade:"
+#~ msgstr "&Puntuació:"
+
+#~ msgid "&Reset Grades"
+#~ msgstr "&Reinicialitza les puntuacions"
+
+#~ msgctxt "Display of the current lesson during practice"
+#~ msgid "Lesson: %1"
+#~ msgstr "Lliçó: %1"
+
+#~ msgid "Remove &Grades from this lesson"
+#~ msgstr "Elimina les &puntuacions d'aquesta lliçó"
+
+#~ msgid "Remove &Grades from this lesson and all sub-lessons"
+#~ msgstr "Elimina les &puntuacions d'aquesta lliçó i totes les sublliçons"
+
+#~ msgctxt "Grade in language, table header"
+#~ msgid "Grade (%1)"
+#~ msgstr "Puntuació (%1)"
+
+#~ msgid "Rename Lesson"
+#~ msgstr "Reanomena la lliçó"
+
+#~ msgid "Remove Grades from this Lesson"
+#~ msgstr "Elimina les puntuacions d'aquesta lliçó"
+
+#~ msgctxt "caption for an overview of the grades for a document"
+#~ msgid "Statistics for \"%1\""
+#~ msgstr "Estadístiques per a «%1»"
+
+#~ msgctxt "pair of two languages that the user chooses to practice"
+#~ msgid "%1 to %2"
+#~ msgstr "%1 a %2"
+
+#~ msgid "Languages:"
+#~ msgstr "Idiomes:"
+
+#~ msgctxt ""
+#~ "@title:group Configure advanced settings for practicing vocabulary, short "
+#~ "title in config dialog."
+#~ msgid "Advanced"
+#~ msgstr "Avançat"
+
+#~ msgid "Use your own colors"
+#~ msgstr "Usar els vostres propis colors"
+
+#~ msgid "Grade Colors"
+#~ msgstr "Colors de puntuació"
+
+#~ msgid ""
+#~ "If it is unchecked, you will just have black on white for the grades; if "
+#~ "it is checked, the colors below will be chosen."
+#~ msgstr ""
+#~ "Si aquesta opció està desactivada, els graus estaran en negre sobre "
+#~ "blanc. Si està activada, s'escolliran els colors de davall."
+
+#~ msgid "&Use colors"
+#~ msgstr "&Utilitza colors"
+
+#~ msgid "Color for the grade 7"
+#~ msgstr "Color per al grau 7"
+
+#~ msgid "&7"
+#~ msgstr "&7"
+
+#~ msgid "Color for the grade 6"
+#~ msgstr "Color per al grau 6"
+
+#~ msgid "Click here to change the color for grade 6."
+#~ msgstr "Feu clic aquí per canviar el color per al grau 6."
+
+#~ msgid "&6"
+#~ msgstr "&6"
+
+#~ msgid "Alt+6"
+#~ msgstr "Alt+6"
+
+#~ msgid "Color for the grade 5"
+#~ msgstr "Color per al grau 5"
+
+#~ msgid "Click here to change the color for grade 5."
+#~ msgstr "Feu clic aquí per canviar el color per al grau 5."
+
+#~ msgid "&5"
+#~ msgstr "&5"
+
+#~ msgid "Alt+5"
+#~ msgstr "Alt+5"
+
+#~ msgid "Color for the grade 4"
+#~ msgstr "Color per al grau 4"
+
+#~ msgid "Click here to change the color for grade 4."
+#~ msgstr "Feu clic aquí per canviar el color per al grau 4."
+
+#~ msgid "&4"
+#~ msgstr "&4"
+
+#~ msgid "Alt+4"
+#~ msgstr "Alt+4"
+
+#~ msgid "Color for the grade 3"
+#~ msgstr "Color per al grau 3"
+
+#~ msgid "Click here to change the color for grade 3."
+#~ msgstr "Feu clic aquí per canviar el color per al grau 3."
+
+#~ msgid "&3"
+#~ msgstr "&3"
+
+#~ msgid "Alt+3"
+#~ msgstr "Alt+3"
+
+#~ msgid "Color for the grade 2"
+#~ msgstr "Color per al grau 2"
+
+#~ msgid "Click here to change the color for grade 2."
+#~ msgstr "Feu clic aquí per canviar el color per al grau 2."
+
+#~ msgid "&2"
+#~ msgstr "&2"
+
+#~ msgid "Color for the grade 1"
+#~ msgstr "Color per al grau 1"
+
+#~ msgid "Click here to change the color for grade 1."
+#~ msgstr "Feu clic aquí per canviar el color per al grau 1."
+
+#~ msgid "&1"
+#~ msgstr "&1"
+
+#~ msgid "&N"
+#~ msgstr "&N"
+
+#~ msgid "Words"
+#~ msgstr "Paraules"
+
+#~ msgid "Could not determine word type of verbs"
+#~ msgstr "No s'ha pogut determinar el tipus de paraula dels verbs"
+
+#~ msgid "\"%1\" is a noun"
+#~ msgstr "«%1» és un substantiu"
+
+#~ msgid "Could not determine word type of nouns"
+#~ msgstr "No s'ha pogut determinar el tipus de paraula dels substantius"
+
+#~ msgid "Conjugation"
+#~ msgstr "Conjugació"
+
+#~ msgid "Turn the selected word into a verb."
+#~ msgstr "Converteix el mot seleccionat a verb."
+
+#~ msgid "Turn the selected word into a noun."
+#~ msgstr "Converteix el mot seleccionat en un substantiu."
+
+#~ msgid "&IPA font:"
+#~ msgstr "Tipus de lletra &IPA:"
+
+#~ msgid "&Table font:"
+#~ msgstr "Tipus de lletra de &taula:"
+
+#~ msgid "Specify which font to use for editing of the main table."
+#~ msgstr ""
+#~ "Especifiqueu quin tipus de lletra s'ha d'emprar per editar la taula "
+#~ "principal."
+
+#~| msgid "Your answer was wrong."
+#~ msgid "Your answer was right on the first attempt."
+#~ msgstr "La vostra resposta ha estat correcta al primer intent."
+
+#~ msgid "Export Options"
+#~ msgstr "Opcions d'exportació"
+
+#~ msgid "List"
+#~ msgstr "Llista"
+
+#~ msgid "A vocabulary list."
+#~ msgstr "Una llista de vocabulari."
+
+#~ msgid "CSV"
+#~ msgstr "CSV"
diff -Nru parley-17.12.3/po/ca@valencia/parley.po parley-18.04.1/po/ca@valencia/parley.po
--- parley-17.12.3/po/ca@valencia/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/ca@valencia/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -1,19 +1,19 @@
 # Translation of parley.po to Catalan (Valencian)
-# Copyright (C) 2004-2017 This_file_is_part_of_KDE
+# Copyright (C) 2004-2018 This_file_is_part_of_KDE
 #
 # Sebastià Pla i Sanz <sps@sastia.com>, 2004.
 # Albert Astals Cid <aacid@kde.org>, 2004.
 # David Gil <al016950@yahoo.es>, 2005.
 # Orestes Mas Casals <orestes@tsc.upc.edu>, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014.
-# Josep Ma. Ferrer <txemaq@gmail.com>, 2007, 2008, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017.
+# Josep Ma. Ferrer <txemaq@gmail.com>, 2007, 2008, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018.
 # Manuel Tortosa <manutortosa@gmail.com>, 2009.
 # Antoni Bella Pérez <antonibella5@yahoo.com>, 2013, 2015, 2016, 2017.
 msgid ""
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
-"PO-Revision-Date: 2017-12-24 17:34+0100\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
+"PO-Revision-Date: 2018-01-27 17:15+0100\n"
 "Last-Translator: Josep Ma. Ferrer <txemaq@gmail.com>\n"
 "Language-Team: Catalan <kde-i18n-ca@kde.org>\n"
 "Language: ca@valencia\n"
@@ -141,7 +141,7 @@
 #: src/collection/containermodel.cpp:176
 #, kde-format
 msgid "Number of entries in this lesson."
-msgstr "Nombre d'entrades en esta lliçó."
+msgstr "Nombre d'entrades en aquesta lliçó."
 
 #: src/collection/entryfilter.cpp:123
 #, kde-format
@@ -363,10 +363,10 @@
 msgid "Fully learned"
 msgstr "Completament apresa"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
-msgstr "Obri esta col·lecció de vocabulari a l'editor"
+msgstr "Obri aquesta col·lecció de vocabulari a l'editor"
 
 #: src/dashboard/collectionwidget.cpp:114
 #, kde-format
@@ -400,7 +400,7 @@
 #: src/dashboard/dashboard.cpp:317
 #, kde-format
 msgid "Are you sure you want to remove this collection?"
-msgstr "De veres voleu eliminar esta col·lecció?"
+msgstr "De veres voleu eliminar aquesta col·lecció?"
 
 #. i18n: ectx: property (windowTitle), widget (QWidget, Dashboard)
 #: src/dashboard/dashboard.ui:14 src/main.cpp:50 src/main.cpp:113
@@ -447,13 +447,13 @@
 #: src/editor/audiowidget.ui:25
 #, kde-format
 msgid "Record"
-msgstr "Grava"
+msgstr "Enregistra"
 
 #. i18n: ectx: property (text), widget (QPushButton, showCurrentButton)
 #: src/editor/browserwidget.ui:18
 #, kde-format
 msgid "Lookup Current"
-msgstr "Busca l'actual"
+msgstr "Cerca l'actual"
 
 #. i18n: ectx: property (text), widget (QCheckBox, followTableCheckBox)
 #: src/editor/browserwidget.ui:33
@@ -504,14 +504,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adjectiu"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Adverbi"
@@ -626,21 +626,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Masculí"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Femení"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neutre"
@@ -804,12 +804,12 @@
 #: src/editor/editor.cpp:453
 #, kde-format
 msgid "Enter search terms here"
-msgstr "Introduïu ací els termes a buscar"
+msgstr "Introduïu ací els termes a cercar"
 
 #: src/editor/editor.cpp:454
 #, kde-format
 msgid "Search your vocabulary"
-msgstr "Busca al vostre vocabulari"
+msgstr "Cerca al vostre vocabulari"
 
 #: src/editor/editor.cpp:456
 #, kde-format
@@ -923,7 +923,7 @@
 #: src/editor/FromToEntryPageForm.ui:206
 #, kde-format
 msgid "The date this expression was last practiced"
-msgstr "La data en què esta expressió s'entrenà per darrera vegada"
+msgstr "La data en què aquesta expressió s'entrenà per darrera vegada"
 
 #. i18n: ectx: property (specialValueText), widget (QDateEdit, queryDateEdit)
 #: src/editor/FromToEntryPageForm.ui:209
@@ -944,13 +944,13 @@
 msgstr "&Restableix els nivells de confiança"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verb"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Substantiu"
@@ -1033,18 +1033,19 @@
 #: src/editor/lessonview.cpp:71
 #, kde-format
 msgid "Remove confidence levels from this unit."
-msgstr "Suprimeix nivells de confiança d'esta unitat."
+msgstr "Suprimeix nivells de confiança d'aquesta unitat."
 
 #: src/editor/lessonview.cpp:77
 #, kde-format
 msgid "Remove Confidence Levels From This Unit And All Subunits"
-msgstr "Suprimeix nivells de confiança d'esta unitat i de totes les subunitats"
+msgstr ""
+"Suprimeix nivells de confiança d'aquesta unitat i de totes les subunitats"
 
 #: src/editor/lessonview.cpp:79
 #, kde-format
 msgid "Remove confidence levels from this unit and all subunits."
 msgstr ""
-"Suprimeix nivells de confiança d'esta unitat i de totes les subunitats."
+"Suprimeix nivells de confiança d'aquesta unitat i de totes les subunitats."
 
 #: src/editor/lessonview.cpp:85
 #, kde-format
@@ -1076,8 +1077,8 @@
 msgid "There is %1 word left in this unit. Do you want to delete it?"
 msgid_plural ""
 "There are %1 words left in this unit. Do you want to delete them?"
-msgstr[0] "Encara queda %1 paraula en esta unitat. Voleu eliminar-la?"
-msgstr[1] "Encara queden %1 paraules en esta unitat. Voleu eliminar-les?"
+msgstr[0] "Encara queda %1 paraula en aquesta unitat. Voleu eliminar-la?"
+msgstr[1] "Encara queden %1 paraules en aquesta unitat. Voleu eliminar-les?"
 
 #: src/editor/lessonview.cpp:209
 #, kde-format
@@ -1090,7 +1091,7 @@
 "The unit will be split into smaller unit. How many entries in each unit do "
 "you want?"
 msgstr ""
-"Esta unitat es dividirà en unitats més petites. Quantes entrades voleu en "
+"Aquesta unitat es dividirà en unitats més petites. Quantes entrades voleu en "
 "cada unitat?"
 
 #. i18n: ectx: property (text), widget (QPushButton, addChoiceButton)
@@ -1278,7 +1279,7 @@
 "this locale: %1."
 msgstr ""
 "O bé la configuració d'idioma és incorrecta o bé no s'ha instal·lat cap "
-"corrector per esta configuració regional: %1."
+"corrector per aquesta configuració regional: %1."
 
 #: src/editor/wordtypeview.cpp:40
 #, kde-format
@@ -1328,7 +1329,7 @@
 #: src/editor/wordtypeview.cpp:75
 #, kde-format
 msgid "This word type folder contains nouns."
-msgstr "Esta carpeta conté substantius."
+msgstr "Aquesta carpeta conté substantius."
 
 #: src/editor/wordtypeview.cpp:81
 #, kde-format
@@ -1338,7 +1339,7 @@
 #: src/editor/wordtypeview.cpp:83
 #, kde-format
 msgid "This word type folder contains masculine nouns."
-msgstr "Esta carpeta conté substantius masculins."
+msgstr "Aquesta carpeta conté substantius masculins."
 
 #: src/editor/wordtypeview.cpp:89
 #, kde-format
@@ -1348,7 +1349,7 @@
 #: src/editor/wordtypeview.cpp:91
 #, kde-format
 msgid "This word type folder contains feminine nouns."
-msgstr "Esta carpeta conté substantius femenins."
+msgstr "Aquesta carpeta conté substantius femenins."
 
 #: src/editor/wordtypeview.cpp:97
 #, kde-format
@@ -1358,24 +1359,24 @@
 #: src/editor/wordtypeview.cpp:99
 #, kde-format
 msgid "This word type folder contains neuter nouns."
-msgstr "Esta carpeta conté substantius neutres."
+msgstr "Aquesta carpeta conté substantius neutres."
 
 #: src/editor/wordtypeview.cpp:107
 #, kde-format
 msgid "This word type folder contains adjectives."
-msgstr "Esta carpeta conté adjectius."
+msgstr "Aquesta carpeta conté adjectius."
 
 #: src/editor/wordtypeview.cpp:115
 #, kde-format
 msgid "This word type folder contains adverbs."
-msgstr "Esta carpeta conté adverbis."
+msgstr "Aquesta carpeta conté adverbis."
 
 #: src/editor/wordtypeview.cpp:124
 #, kde-format
 msgid "This word type folder contains verbs."
-msgstr "Esta carpeta conté verbs."
+msgstr "Aquesta carpeta conté verbs."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Conjunció"
@@ -1383,7 +1384,7 @@
 #: src/editor/wordtypeview.cpp:132
 #, kde-format
 msgid "This word type folder contains conjunctions."
-msgstr "Esta carpeta conté conjuncions."
+msgstr "Aquesta carpeta conté conjuncions."
 
 #: src/editor/wordtypeview.cpp:138
 #, kde-format
@@ -1393,7 +1394,7 @@
 #: src/editor/wordtypeview.cpp:141
 #, kde-format
 msgid "This word type folder contains no word type with special meaning."
-msgstr "Esta carpeta no conté paraules amb significat especial."
+msgstr "Aquesta carpeta no conté paraules amb significat especial."
 
 #: src/editor/wordtypeview.cpp:219
 #, kde-format
@@ -1407,8 +1408,9 @@
 msgid_plural ""
 "There are %1 words left with this word type. They will lose their word type. "
 "Continue?"
-msgstr[0] "Queda una paraula amb este tipus. Perdrà el seu tipus. Continuo?"
-msgstr[1] "Queden %1 paraules amb este tipus. Perdran el seu tipus. Continuo?"
+msgstr[0] "Queda una paraula amb aquest tipus. Perdrà el seu tipus. Continuo?"
+msgstr[1] ""
+"Queden %1 paraules amb aquest tipus. Perdran el seu tipus. Continuo?"
 
 #. i18n: ectx: property (windowTitle), widget (QWidget, ExportOptions)
 #: src/exportdialog.cpp:62 src/exportdialog.ui:14
@@ -1804,23 +1806,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Comparteix la col·lecció de vocabulari actual amb altres usuaris"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Propietats per a %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Obri una col·lecció de vocabulari"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Obri en &mode d'exercici"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1835,23 +1837,23 @@
 "\n"
 "Voleu ignorar el bloqueig?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Ignora el bloqueig"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "En obrir la col·lecció «%1» s'ha produït un error: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Obri una col·lecció"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1862,12 +1864,12 @@
 "\n"
 "Voleu guardar el fitxer abans d'eixir?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Obri una col·lecció de vocabulari descarregada"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1881,36 +1883,36 @@
 "\n"
 "Voleu ignorar el bloqueig?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "En escriure el fitxer «%1» s'ha produït un error: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Guarda el fitxer"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Guarda el vocabulari com a"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>El fitxer<p><b>%1</b></p>ja existeix. Voleu sobreescriure'l?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "S'està desant %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Domini públic"
@@ -1918,34 +1920,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Idiomes"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Un segon idioma"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lliçó 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "No s'ha pogut obrir la col·lecció de vocabulari «%1»"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "No s'ha pogut crear el directori temporal «%1»"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "No s'ha pogut guardar la col·lecció de vocabulari «%1»"
@@ -2286,7 +2288,7 @@
 #: src/practice/configure/blockoptions.ui:228
 #, kde-format
 msgid "Vocabulary drops one grade after this much time:"
-msgstr "El vocabulari baixa un grau després de passar este temps:"
+msgstr "El vocabulari baixa un grau després de passar aquest temps:"
 
 #. i18n: ectx: property (text), widget (QCheckBox, kcfg_ComparisonIncludeAdjective)
 #: src/practice/configure/comparisonoptionswidget.ui:16
@@ -2473,7 +2475,7 @@
 "synonym is accepted."
 msgstr ""
 "Per omissió se vos demanarà que introduïu sinònims fins que encerteu aquell "
-"que està associat directament amb el mot actual. Amb esta opció activada "
+"que està associat directament amb el mot actual. Amb aquesta opció activada "
 "s'accepta qualsevol sinònim."
 
 #. i18n: ectx: property (text), widget (QCheckBox, kcfg_CountSynonymsAsCorrect)
@@ -2663,7 +2665,7 @@
 #: src/practice/practice_mainwindow.ui:128
 #, kde-format
 msgid "Skip this word for now and ask again later"
-msgstr "Salta esta paraula per ara i pregunta-la més tard"
+msgstr "Salta aquesta paraula per ara i pregunta-la més tard"
 
 #. i18n: ectx: property (text), widget (QPushButton, answerLaterButton)
 #: src/practice/practice_mainwindow.ui:131
@@ -2741,7 +2743,7 @@
 "This shortcut changes how the answer is counted."
 msgstr ""
 "Quan respongueu, el Parley mostrarà si la resposta ha estat correcta o no.\n"
-"Esta drecera canvia la manera com es compta la resposta."
+"Aquesta drecera canvia la manera com es compta la resposta."
 
 #: src/practice/practicesummarycomponent.cpp:66
 #, kde-format
@@ -2875,14 +2877,14 @@
 "Words will only be counted as correct if they are answered correctly on the "
 "first attempt."
 msgstr ""
-"Esta paraula es comptarà com a correcta.\n"
+"Aquesta paraula es comptarà com a correcta.\n"
 "Les paraules només es compten com a correctes si es responen correctament al "
 "primer intent."
 
 #: src/practice/statustoggle.cpp:87
 #, kde-format
 msgid "Count this answer as wrong"
-msgstr "Compta esta paraula com a errònia"
+msgstr "Compta aquesta paraula com a errònia"
 
 #: src/practice/statustoggle.cpp:90
 #, kde-format
@@ -2891,14 +2893,14 @@
 "Words will only be counted as correct if they are answered correctly on the "
 "first attempt."
 msgstr ""
-"Esta paraula es comptarà com a errònia.\n"
+"Aquesta paraula es comptarà com a errònia.\n"
 "Les paraules només es compten com a correctes si es responen correctament al "
 "primer intent."
 
 #: src/practice/statustoggle.cpp:91
 #, kde-format
 msgid "Count this answer as correct"
-msgstr "Compta esta paraula com a correcta"
+msgstr "Compta aquesta paraula com a correcta"
 
 #: src/practice/summarybarwidget.cpp:85
 #, kde-format
@@ -2931,7 +2933,7 @@
 #: src/practice/summarybarwidget.cpp:162
 #, kde-format
 msgid "Not answered during this practice: %1 of %2 (%3 %)"
-msgstr "No contestades en esta sessió: %1 de %2 (%3%)"
+msgstr "No contestades en aquesta sessió: %1 de %2 (%3%)"
 
 #: src/practice/writtenbackendmode.cpp:81
 #, kde-format
@@ -3272,6 +3274,14 @@
 msgid "Visible columns in the main editor window."
 msgstr "Columnes visibles a la finestra principal de l'editor."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+"Elements de vista en arbre replegats a la finestra de vista d'estadístiques."
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -3345,7 +3355,7 @@
 "When this option is checked, the last active collection will be loaded "
 "automatically when starting Parley instead of showing the welcome screen."
 msgstr ""
-"Quan esta opció estiga marcada, en iniciar Parley es carregarà "
+"Quan aquesta opció estiga marcada, en iniciar Parley es carregarà "
 "automàticament la darrera col·lecció activa en lloc de mostrar la pantalla "
 "de benvinguda."
 
@@ -3367,13 +3377,13 @@
 #: src/settings/generaloptionsbase.ui:42 src/settings/generaloptionsbase.ui:63
 #, kde-format
 msgid "Your work will be automatically saved if you check this option"
-msgstr "El vostre treball es guardarà automàticament si activeu esta opció"
+msgstr "El vostre treball es guardarà automàticament si activeu aquesta opció"
 
 #. i18n: ectx: property (text), widget (QCheckBox, kcfg_AutoSave)
 #: src/settings/generaloptionsbase.ui:45
 #, kde-format
 msgid "&Save vocabularies automatically on close and quit"
-msgstr "Al&ça els vocabularis automàticament en tancar i eixir"
+msgstr "Guar&da els vocabularis automàticament en tancar i eixir"
 
 #. i18n: ectx: property (text), widget (QCheckBox, kcfg_AutoBackup)
 #: src/settings/generaloptionsbase.ui:66
@@ -3514,7 +3524,7 @@
 "The selected user defined tense could not be deleted\n"
 "because it is in use."
 msgstr ""
-"No s'ha pogut eliminar este temps definit per l'usuari\n"
+"No s'ha pogut eliminar aquest temps definit per l'usuari\n"
 "perquè està en ús."
 
 #: src/settings/languagepropertiespage.cpp:408
@@ -3706,14 +3716,14 @@
 #: src/settings/languagesettings.kcfg:12 src/settings/languagesettings.kcfg:13
 #, kde-format
 msgid "Keyboard layout for this locale"
-msgstr "Disposició del teclat per esta configuració regional"
+msgstr "Disposició del teclat per aquesta configuració regional"
 
 #. i18n: ectx: label, entry (SpellChecker), group (Locale $(locale))
 #. i18n: ectx: whatsthis, entry (SpellChecker), group (Locale $(locale))
 #: src/settings/languagesettings.kcfg:17 src/settings/languagesettings.kcfg:18
 #, kde-format
 msgid "Spell checker for this language"
-msgstr "Corrector ortogràfic per este idioma"
+msgstr "Corrector ortogràfic per aquest idioma"
 
 #. i18n: ectx: label, entry (PracticeFont), group (Locale $(locale))
 #: src/settings/languagesettings.kcfg:32
@@ -3831,7 +3841,7 @@
 "Append new vocabulary in a collection in order of their units. Note that "
 "this will not be a hard transition, but a slow mix from one unit to the next."
 msgstr ""
-"Afig nou vocabulari a una col·lecció en l'orde de les seues unitats. Noteu "
+"Afig nou vocabulari a una col·lecció en l'ordre de les seues unitats. Noteu "
 "que això no serà una transició brusca, sinó una barreja suau d'una unitat a "
 "la següent."
 
@@ -3842,7 +3852,7 @@
 "The number of entries that are practiced at the same time. If one of these "
 "is answered correctly another entry will be appended."
 msgstr ""
-"El nombre d'entrades que s'exerciten alhora. Si una d'estes es respon "
+"El nombre d'entrades que s'exerciten alhora. Si una d'aquestes es respon "
 "correctament s'afegirà una altra entrada."
 
 #. i18n: ectx: label, entry (SwapDirection), group (PracticeOptions)
@@ -4014,8 +4024,8 @@
 "The maximum number of words in the initial phase. If this limit is exceeded, "
 "no new words will be introduced."
 msgstr ""
-"El nombre màxim de paraules en la fase inicial. Si este límit s'excedeix, no "
-"s'introduiran paraules noves."
+"El nombre màxim de paraules en la fase inicial. Si aquest límit s'excedeix, "
+"no s'introduiran paraules noves."
 
 #. i18n: ectx: label, entry (MultipleChoiceWordTypeConsistancy), group (PracticeOptions)
 #: src/settings/parley.kcfg:190
@@ -4124,8 +4134,8 @@
 "The entry must have been asked at least this often to be included in the "
 "practice."
 msgstr ""
-"Esta entrada s'ha d'haver escollit com a mínim este nombre de vegades per "
-"ser inclosa a l'exercici."
+"Aquesta entrada s'ha d'haver escollit com a mínim aquest nombre de vegades "
+"per ser inclosa a l'exercici."
 
 #. i18n: ectx: label, entry (PracticeMaximumTimesAsked), group (Thresholds)
 #: src/settings/parley.kcfg:271
@@ -4134,8 +4144,8 @@
 "The entry must have been asked at most this often to be included in the "
 "practice."
 msgstr ""
-"Esta entrada s'ha d'haver escollit com a màxim este nombre de vegades per "
-"ser inclosa a l'exercici."
+"Aquesta entrada s'ha d'haver escollit com a màxim aquest nombre de vegades "
+"per ser inclosa a l'exercici."
 
 #. i18n: ectx: label, entry (PracticeMinimumWrongCount), group (Thresholds)
 #: src/settings/parley.kcfg:276
@@ -4144,8 +4154,8 @@
 "The entry must have been answered incorrectly at least this often to be "
 "included in the practice."
 msgstr ""
-"L'entrada s'ha d'haver respost erròniament com a mínim este valor per tal de "
-"ser inclosa a l'exercici."
+"L'entrada s'ha d'haver respost erròniament com a mínim aquest valor per tal "
+"de ser inclosa a l'exercici."
 
 #. i18n: ectx: label, entry (PracticeMaximumWrongCount), group (Thresholds)
 #: src/settings/parley.kcfg:280
@@ -4154,8 +4164,8 @@
 "The entry must have been answered incorrectly at most this often to be "
 "included in the practice."
 msgstr ""
-"L'entrada s'ha d'haver respost erròniament com a màxim este valor per tal de "
-"ser inclosa a l'exercici."
+"L'entrada s'ha d'haver respost erròniament com a màxim aquest valor per tal "
+"de ser inclosa a l'exercici."
 
 #. i18n: ectx: label, entry (PracticeMinimumGrade), group (Thresholds)
 #: src/settings/parley.kcfg:285
@@ -4164,7 +4174,7 @@
 "The entry must have at least this confidence level to be included in the "
 "practice (0..7)."
 msgstr ""
-"L'entrada ha de tindre com a mínim este nivell de confiança per tal de ser "
+"L'entrada ha de tindre com a mínim aquest nivell de confiança per tal de ser "
 "inclosa a l'exercici (0..7)."
 
 #. i18n: ectx: label, entry (PracticeMaximumGrade), group (Thresholds)
@@ -4174,7 +4184,7 @@
 "The entry must have at most this confidence level to be included in the "
 "practice (0..7)."
 msgstr ""
-"L'entrada ha de tindre com a màxim este nivell de confiança per tal de ser "
+"L'entrada ha de tindre com a màxim aquest nivell de confiança per tal de ser "
 "inclosa a l'exercici (0..7)."
 
 #. i18n: ectx: label, entry (WordTypesInPracticeEnabled), group (Thresholds)
@@ -4220,7 +4230,7 @@
 #, kde-format
 msgid "The time the solution is shown (seconds). 0 is unlimited."
 msgstr ""
-"Duració de la visualització de la solució (segons). 0 vol dir il·limitada."
+"Durada de la visualització de la solució (segons). 0 vol dir il·limitada."
 
 #. i18n: ectx: label, entry (PracticeMode), group (PracticeManager)
 #: src/settings/parley.kcfg:337
@@ -4283,7 +4293,7 @@
 #: src/settings/parley.kcfg:391
 #, kde-format
 msgid "The command used to start a downloaded vocabulary"
-msgstr "L'orde usada per iniciar un vocabulari descarregat"
+msgstr "L'ordre usada per iniciar un vocabulari descarregat"
 
 #. i18n: ectx: label, entry (InstallPath), group (KNewStuff)
 #: src/settings/parley.kcfg:395
@@ -4410,21 +4420,23 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
-msgstr "Elimina els nivells de confiança d'esta unitat"
+msgstr "Elimina els nivells de confiança d'aquesta unitat"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
-msgstr "Elimina els nivells de confiança d'esta unitat i totes les subunitats"
+msgstr ""
+"Elimina els nivells de confiança d'aquesta unitat i totes les subunitats"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
-msgstr "Elimina els nivells de confiança d'esta unitat i totes les subunitats"
+msgstr ""
+"Elimina els nivells de confiança d'aquesta unitat i totes les subunitats"
 
 #: src/statistics/statisticslegendwidget.cpp:43
 #, kde-format
@@ -4458,17 +4470,17 @@
 msgid "Not practiced"
 msgstr "No s'ha exercitat"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Del conegut al nou"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Del nou al conegut"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Direccions barrejades"
@@ -4551,7 +4563,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Recorda per a cada mode d'exercici"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
@@ -4580,7 +4592,7 @@
 msgid ""
 "<p>To <em>search</em> for a word, simply type it into the search bar.</p>\n"
 msgstr ""
-"<p>Per a <em>buscar</em> un mot, simplement escriviu-lo a la barra de busca."
+"<p>Per a <em>cercar</em> un mot, simplement escriviu-lo a la barra de cerca."
 "</p>\n"
 
 #. i18n: ectx: @info:tipoftheday
@@ -4623,7 +4635,7 @@
 "lesson a child of another lesson.</p>\n"
 msgstr ""
 "<p>Podeu arrossegar i amollar les vostres lliçons per tal de canviar-ne "
-"l'orde o per fer que una lliçó siga filla d'una altra.</p>\n"
+"l'ordre o per fer que una lliçó siga filla d'una altra.</p>\n"
 
 #. i18n: ectx: @info:tipoftheday
 #: tips:35
@@ -4703,3 +4715,271 @@
 "on es llisten molts documents de vocabulari:\n"
 "<a href=\"http://edu.kde.org/contrib/kvtml2.php\">http://edu.kde.org/contrib/"
 "kvtml2.php</a>.</p>\n"
+
+#~ msgid "Limit the number of words in the initial phase"
+#~ msgstr "Limita el nombre de paraules en la fase inicial"
+
+#~ msgid "Max number of words in the initial phase"
+#~ msgstr "Nombre màxim de paraules en la fase inicial"
+
+#~ msgid "I knew it well"
+#~ msgstr "Ho sabia bé"
+
+#~ msgid "Initial phase"
+#~ msgstr "Fase inicial"
+
+#~ msgid "Long term phase"
+#~ msgstr "Fase a llarg termini"
+
+#~ msgid "Invalid entry"
+#~ msgstr "Entrada no vàlida"
+
+#~ msgid "Newly started"
+#~ msgstr "S'ha iniciat novament"
+
+#~ msgid ""
+#~ "Error: ui file not found.\n"
+#~ "Check your installation."
+#~ msgstr ""
+#~ "Error: no s'ha trobat el fitxer ui.\n"
+#~ "Comproveu la vostra instal·lació."
+
+#~ msgid "Fetch Image"
+#~ msgstr "Vés a buscar la imatge"
+
+#~ msgid ""
+#~ "No Selection:\n"
+#~ "Select a word to fetch an image for it"
+#~ msgstr ""
+#~ "No heu fet cap selecció:\n"
+#~ "Seleccioneu una paraula per anar a cercar-ne una imatge escaient"
+
+#~ msgid "Fetches an image for the selected translation"
+#~ msgstr "Va a cercar una imatge per a la traducció escollida"
+
+#~ msgid "Give a keyword to search for an image related to it:"
+#~ msgstr "Entreu una paraula clau per cercar una imatge relacionada:"
+
+#~ msgid "Search"
+#~ msgstr "Cerca"
+
+#~ msgid "Free images only (creative commons, gpl, ...)"
+#~ msgstr "Només imatges lliures (gpl, creative commons,...)"
+
+#~ msgid "Previous"
+#~ msgstr "Anterior"
+
+#~ msgid ""
+#~ "Requires you to answer each question correctly 3 times in a row for it to "
+#~ "be counted as correct."
+#~ msgstr ""
+#~ "Us demana que respongueu cada pregunta correctament 3 vegades seguides "
+#~ "per tal que es computi com a correcta."
+
+#~ msgid "Require 3 consecutive correct answers"
+#~ msgstr "Requereix 3 respostes correctes consecutives"
+
+#~ msgid "Use the Leitner learning method"
+#~ msgstr "Usa el mètode d'aprenentatge Leitner"
+
+#~ msgid "Lessons"
+#~ msgstr "Lliçons"
+
+#, fuzzy
+#~| msgid "Base color for displaying grades:"
+#~ msgid "Color for displaying invalid units:"
+#~ msgstr "Color de base per a mostrar les puntuacions:"
+
+#~ msgid "Start practice instead of editor"
+#~ msgstr "Inicia l'exercici en lloc de l'editor"
+
+#~ msgid "&Start Page"
+#~ msgstr "&Pàgina d'inici"
+
+#~ msgid "Could not read collection from \"%1\""
+#~ msgstr "No s'ha pogut llegit la col·lecció de «%1»"
+
+#~ msgid "&Lesson"
+#~ msgstr "&Lliçó"
+
+#~ msgid "&Grade:"
+#~ msgstr "&Puntuació:"
+
+#~ msgid "&Reset Grades"
+#~ msgstr "&Reinicialitza les puntuacions"
+
+#~ msgctxt "Display of the current lesson during practice"
+#~ msgid "Lesson: %1"
+#~ msgstr "Lliçó: %1"
+
+#~ msgid "Remove &Grades from this lesson"
+#~ msgstr "Elimina les &puntuacions d'aquesta lliçó"
+
+#~ msgid "Remove &Grades from this lesson and all sub-lessons"
+#~ msgstr "Elimina les &puntuacions d'aquesta lliçó i totes les sublliçons"
+
+#~ msgctxt "Grade in language, table header"
+#~ msgid "Grade (%1)"
+#~ msgstr "Puntuació (%1)"
+
+#~ msgid "Rename Lesson"
+#~ msgstr "Reanomena la lliçó"
+
+#~ msgid "Remove Grades from this Lesson"
+#~ msgstr "Elimina les puntuacions d'aquesta lliçó"
+
+#~ msgctxt "caption for an overview of the grades for a document"
+#~ msgid "Statistics for \"%1\""
+#~ msgstr "Estadístiques per a «%1»"
+
+#~ msgctxt "pair of two languages that the user chooses to practice"
+#~ msgid "%1 to %2"
+#~ msgstr "%1 a %2"
+
+#~ msgid "Languages:"
+#~ msgstr "Idiomes:"
+
+#~ msgctxt ""
+#~ "@title:group Configure advanced settings for practicing vocabulary, short "
+#~ "title in config dialog."
+#~ msgid "Advanced"
+#~ msgstr "Avançat"
+
+#~ msgid "Use your own colors"
+#~ msgstr "Usar els vostres propis colors"
+
+#~ msgid "Grade Colors"
+#~ msgstr "Colors de puntuació"
+
+#~ msgid ""
+#~ "If it is unchecked, you will just have black on white for the grades; if "
+#~ "it is checked, the colors below will be chosen."
+#~ msgstr ""
+#~ "Si aquesta opció està desactivada, els graus estaran en negre sobre "
+#~ "blanc. Si està activada, s'escolliran els colors de davall."
+
+#~ msgid "&Use colors"
+#~ msgstr "&Utilitza colors"
+
+#~ msgid "Color for the grade 7"
+#~ msgstr "Color per al grau 7"
+
+#~ msgid "&7"
+#~ msgstr "&7"
+
+#~ msgid "Color for the grade 6"
+#~ msgstr "Color per al grau 6"
+
+#~ msgid "Click here to change the color for grade 6."
+#~ msgstr "Feu clic aquí per canviar el color per al grau 6."
+
+#~ msgid "&6"
+#~ msgstr "&6"
+
+#~ msgid "Alt+6"
+#~ msgstr "Alt+6"
+
+#~ msgid "Color for the grade 5"
+#~ msgstr "Color per al grau 5"
+
+#~ msgid "Click here to change the color for grade 5."
+#~ msgstr "Feu clic aquí per canviar el color per al grau 5."
+
+#~ msgid "&5"
+#~ msgstr "&5"
+
+#~ msgid "Alt+5"
+#~ msgstr "Alt+5"
+
+#~ msgid "Color for the grade 4"
+#~ msgstr "Color per al grau 4"
+
+#~ msgid "Click here to change the color for grade 4."
+#~ msgstr "Feu clic aquí per canviar el color per al grau 4."
+
+#~ msgid "&4"
+#~ msgstr "&4"
+
+#~ msgid "Alt+4"
+#~ msgstr "Alt+4"
+
+#~ msgid "Color for the grade 3"
+#~ msgstr "Color per al grau 3"
+
+#~ msgid "Click here to change the color for grade 3."
+#~ msgstr "Feu clic aquí per canviar el color per al grau 3."
+
+#~ msgid "&3"
+#~ msgstr "&3"
+
+#~ msgid "Alt+3"
+#~ msgstr "Alt+3"
+
+#~ msgid "Color for the grade 2"
+#~ msgstr "Color per al grau 2"
+
+#~ msgid "Click here to change the color for grade 2."
+#~ msgstr "Feu clic aquí per canviar el color per al grau 2."
+
+#~ msgid "&2"
+#~ msgstr "&2"
+
+#~ msgid "Color for the grade 1"
+#~ msgstr "Color per al grau 1"
+
+#~ msgid "Click here to change the color for grade 1."
+#~ msgstr "Feu clic aquí per canviar el color per al grau 1."
+
+#~ msgid "&1"
+#~ msgstr "&1"
+
+#~ msgid "&N"
+#~ msgstr "&N"
+
+#~ msgid "Words"
+#~ msgstr "Paraules"
+
+#~ msgid "Could not determine word type of verbs"
+#~ msgstr "No s'ha pogut determinar el tipus de paraula dels verbs"
+
+#~ msgid "\"%1\" is a noun"
+#~ msgstr "«%1» és un substantiu"
+
+#~ msgid "Could not determine word type of nouns"
+#~ msgstr "No s'ha pogut determinar el tipus de paraula dels substantius"
+
+#~ msgid "Conjugation"
+#~ msgstr "Conjugació"
+
+#~ msgid "Turn the selected word into a verb."
+#~ msgstr "Converteix el mot seleccionat a verb."
+
+#~ msgid "Turn the selected word into a noun."
+#~ msgstr "Converteix el mot seleccionat en un substantiu."
+
+#~ msgid "&IPA font:"
+#~ msgstr "Tipus de lletra &IPA:"
+
+#~ msgid "&Table font:"
+#~ msgstr "Tipus de lletra de &taula:"
+
+#~ msgid "Specify which font to use for editing of the main table."
+#~ msgstr ""
+#~ "Especifiqueu quin tipus de lletra s'ha d'emprar per editar la taula "
+#~ "principal."
+
+#~| msgid "Your answer was wrong."
+#~ msgid "Your answer was right on the first attempt."
+#~ msgstr "La vostra resposta ha estat correcta al primer intent."
+
+#~ msgid "Export Options"
+#~ msgstr "Opcions d'exportació"
+
+#~ msgid "List"
+#~ msgstr "Llista"
+
+#~ msgid "A vocabulary list."
+#~ msgstr "Una llista de vocabulari."
+
+#~ msgid "CSV"
+#~ msgstr "CSV"
diff -Nru parley-17.12.3/po/cs/parley.po parley-18.04.1/po/cs/parley.po
--- parley-17.12.3/po/cs/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/cs/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -7,7 +7,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2017-09-13 09:18+0100\n"
 "Last-Translator: Vít Pelčák <vit@pelcak.org>\n"
 "Language-Team: Czech <kde-i18n-doc@kde.org>\n"
@@ -355,7 +355,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr ""
@@ -498,14 +498,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Přídavné jméno"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Příslovce"
@@ -620,21 +620,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Mužský"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Ženský"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Střední"
@@ -939,13 +939,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Sloveso"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Podstatné jméno"
@@ -1369,7 +1369,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Tato složka se slovním druhem obsahuje slovesa."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Spojka"
@@ -1802,23 +1802,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr ""
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Vlastnosti pro %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Otevřít sbírku se slovní zásobou"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Otevřít v &režimu procvičování"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1828,23 +1828,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Při otvírání sbírky \"%1\" nastala chyba: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Otevřít sbírku"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1855,12 +1855,12 @@
 "\n"
 "Uložit soubor před ukončením programu?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Otevřít staženou sbírku se slovní zásobou"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1869,36 +1869,36 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Při zápisu souboru \"%1\" nastala chyba: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Uložit soubor"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Uložit slovní zásobu jako"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Soubor<p><b>%1</b></p>již existuje. Přejete si jej přepsat?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Ukládá se %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Volně šiřitelné dílo"
@@ -1906,34 +1906,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Jazyky"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Druhý jazyk"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lekce 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Nelze otevřít sbírku se slovní zásobou \"%1\""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Nelze vytvořit dočasný adresář \"%1\""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Nelze uložit sbírku se slovní zásobou \"%1\""
@@ -3221,6 +3221,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Viditelné sloupce v hlavním okně úprav."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4341,18 +4348,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr ""
@@ -4389,17 +4396,17 @@
 msgid "Not practiced"
 msgstr "Nebylo procvičováno"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Smíšené směry"
@@ -4482,7 +4489,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/da/parley.po parley-18.04.1/po/da/parley.po
--- parley-17.12.3/po/da/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/da/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -12,7 +12,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2014-04-20 17:41+0200\n"
 "Last-Translator: Martin Schlander <mschlander@opensuse.org>\n"
 "Language-Team: Danish <kde-i18n-doc@kde.org>\n"
@@ -370,7 +370,7 @@
 msgid "Fully learned"
 msgstr "Lært fuldt ud"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Åbn denne ordforrådssamling i editoren"
@@ -518,14 +518,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Tillægsord"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Biord"
@@ -640,21 +640,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Hankøn"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Hunkøn"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Intetkøn"
@@ -963,13 +963,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Udsagnsord"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Navneord"
@@ -1411,7 +1411,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Denne ordtype-mappe indeholder udsagnsord."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Bindeord"
@@ -1846,23 +1846,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Del den aktuelle ordforrådssamling med andre brugere"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Egenskaber for %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Åbn ordforrådssamling"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Åbn i ø&velsesttilstand"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1872,24 +1872,24 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, fuzzy, kde-format
 #| msgid "Writing file \"%1\" resulted in an error: %2"
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Skrivning af filen \"%1\" resulterede i en fejl: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Åbn samling"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1900,12 +1900,12 @@
 "\n"
 "Gem filen før afslutning?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Åbn downloadet ordforrådssamling"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1914,37 +1914,37 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Skrivning af filen \"%1\" resulterede i en fejl: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Gem fil"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Gem ordforråd som"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr ""
 "<qt>Filen<p><b>%1</b></p>eksisterer allerede. Vil du overskrive den?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Gemmer %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Offentlig ejendom"
@@ -1952,35 +1952,35 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Sprog"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Et andet sprog"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lektion 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Kunne ikke åbne ordforrådssamlingen \"%1\""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Could not write to file \"%1\""
 msgid "Could not create temporary directory \"%1\""
 msgstr "Kunne ikke skrive til filen %1\""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Could not open vocabulary collection \"%1\""
 msgid "Could not save vocabulary collection \"%1\""
@@ -3307,6 +3307,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Synlige kolonner i editorens hovedvindue."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4446,20 +4453,20 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove grades from this lesson"
 msgid "Remove confidence levels from this unit"
 msgstr "Fjern karakterer fra denne lektion"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Remove grades from this lesson and all sub-lessons"
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Fjern karakterer fra denne lektion og alle underlektioner"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Remove grades from this lesson and all sub-lessons"
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4501,17 +4508,17 @@
 msgid "Not practiced"
 msgstr "Ikke øvet"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Mixed Letters"
 msgid "Mixed Directions"
@@ -4605,7 +4612,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/de/parley.po parley-18.04.1/po/de/parley.po
--- parley-17.12.3/po/de/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/de/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -12,7 +12,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2017-12-05 17:50+0100\n"
 "Last-Translator: Burkhard Lück <lueck@hube-lueck.de>\n"
 "Language-Team: German <kde-i18n-de@kde.org>\n"
@@ -360,7 +360,7 @@
 msgid "Fully learned"
 msgstr "Vollständig gelernt"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Diese Vokabelsammlung im Editor öffnen"
@@ -503,14 +503,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adjektiv"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Adverb"
@@ -625,21 +625,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "männlich"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "weiblich"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "sächlich"
@@ -944,13 +944,13 @@
 msgstr "Vertrauenswerte zu&rücksetzen"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verb"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Substantiv"
@@ -1376,7 +1376,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Dieser Wortartenordner enthält Verben."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Konjuktion"
@@ -1809,23 +1809,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Die aktuelle Vokabelsammlung mit anderen Benutzern teilen"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Eigenschaften von %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Vokabelsammlung öffnen"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Im Übungs&modus öffnen"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1840,23 +1840,23 @@
 "\n"
 "Möchten Sie die Sperre übernehmen?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Sperre übernehmen"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Beim Öffnen der Sammlung „%1“ ist ein Fehler aufgetreten: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Sammlung öffnen"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1867,12 +1867,12 @@
 "\n"
 "Datei vor dem Beenden speichern?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Heruntergeladene Vokabelsammlung öffnen"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1886,23 +1886,23 @@
 "\n"
 "Möchten Sie die Sperre übernemen?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Beim Schreiben in die Datei „%1“ ist ein Fehler aufgetreten: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Datei speichern"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Wörterbuchdatei speichern unter"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
@@ -1910,14 +1910,14 @@
 "<qt>Die Datei<p><b>%1</b></p>existiert bereits. Möchten Sie sie "
 "überschreiben?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "%1 wird gespeichert"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Gemeinfreiheit"
@@ -1925,34 +1925,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Sprachen"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Eine zweite Sprache"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lektion 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Die Vokabelsammlung „%1“ kann nicht geöffnet werden"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Der temporäre Ordner „%1“ kann nicht erstellt werden"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Die Vokabelsammlung „%1“ kann nicht gespeichert werden"
@@ -3280,6 +3280,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Im Haupt-Editorfenster angezeigte Spalten."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4414,18 +4421,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Vertrauenswerte aus dieser Einheit entfernen"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Vertrauenswerte aus dieser Einheit und allen Untereinheiten entfernen"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Vertrauenswerte aus dieser Einheit und allen Untereinheiten entfernen"
@@ -4462,17 +4469,17 @@
 msgid "Not practiced"
 msgstr "Nicht abgefragt"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Bekannt zu Lernen"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Lernen zu Bekannt"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Gemischte Richtungen"
@@ -4555,7 +4562,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Für jeden Übungsmodus merken"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/el/parley.po parley-18.04.1/po/el/parley.po
--- parley-17.12.3/po/el/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/el/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -11,7 +11,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2017-09-21 11:23+0200\n"
 "Last-Translator: Stelios <sstavra@gmail.com>\n"
 "Language-Team: Greek <kde-i18n-el@kde.org>\n"
@@ -361,7 +361,7 @@
 msgid "Fully learned"
 msgstr "Έχει εκμαθηθεί πλήρως"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Άνοιγμα της συγκεκριμένης συλλογής λεξιλογίου με τον επεξεργαστή"
@@ -504,14 +504,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Επίθετο"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Επίρρημα"
@@ -626,21 +626,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Αρσενικό"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Θηλυκό"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Ουδέτερο"
@@ -944,13 +944,13 @@
 msgstr "&Επαναφορά επιπέδων αυτοπεποίθησης"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Ρήμα"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Ουσιαστικό"
@@ -1379,7 +1379,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Αυτός ο φάκελος τύπου λέξεων περιέχει ρήματα."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Κλίση"
@@ -1806,23 +1806,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Κοινή χρήση της τρέχουσας συλλογής λεξιλογίου με άλλους χρήστες"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Ιδιότητες για το %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Άνοιγμα συλλογής λεξιλογίου"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Άνοιγμα σε &λειτουργία εξάσκησης"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1837,23 +1837,23 @@
 "\n"
 "Επιθυμείτε την ανάληψη του κλειδώματος;\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Ανάληψη του κλειδώματος"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Το άνοιγμα της συλλογής \"%1\" οδήγησε σε σφάλμα: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Άνοιγμα συλλογής"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1864,12 +1864,12 @@
 "\n"
 "Αποθήκευση αρχείου πριν την έξοδο;\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Άνοιγμα ληφθείσας συλλογής λεξιλογίου"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1883,23 +1883,23 @@
 "\n"
 "Επιθυμείτε την ανάληψη του κλειδώματος;\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Η εγγραφή του αρχείου \"%1\" τερμάτισε με σφάλμα: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Αποθήκευση αρχείου"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Αποθήκευση λεξιλογίου ως"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
@@ -1907,14 +1907,14 @@
 "<qt>Το αρχείο<p><b>%1</b></p>υπάρχει ήδη. Επιθυμείτε την αντικατάστασή του;</"
 "qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Αποθήκευση %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Δημόσια χρήση"
@@ -1922,34 +1922,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Γλώσσες"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Μια δεύτερη γλώσσα"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Μάθημα 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Αδυναμία ανοίγματος της συλλογής λεξιλογίου \"%1\""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Αδυναμία δημιουργίας του προσωρινού καταλόγου \"%1\""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Αδυναμία αποθήκευσης της συλλογής λεξιλογίου \"%1\""
@@ -3282,6 +3282,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Ορατές στήλες στο κύριο παράθυρο επεξεργασίας."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4416,20 +4423,20 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Αφαίρεση των επιπέδων αυτοπεποίθησης από αυτήν την ενότητα"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr ""
 "Αφαίρεση των επιπέδων αυτοπεποίθησης από αυτήν την ενότητα και όλες τις υπο-"
 "ενότητες"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr ""
@@ -4468,17 +4475,17 @@
 msgid "Not practiced"
 msgstr "Δεν έχει εξασκηθεί"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Από αυτή που γνωρίζετε προς αυτή που μαθαίνετε"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Από αυτή που μαθαίνετε προς αυτή που γνωρίζετε"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Ανάμικτες κατευθύνσεις"
@@ -4561,7 +4568,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Απομνημόνευση για κάθε λειτουργία εξάσκησης"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/en_GB/parley.po parley-18.04.1/po/en_GB/parley.po
--- parley-17.12.3/po/en_GB/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/en_GB/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -4,13 +4,13 @@
 #
 # Malcolm Hunter <malcolm.hunter@gmx.co.uk>, 2003, 2004, 2005, 2009.
 # Andrew Coles <andrew_coles@yahoo.co.uk>, 2004, 2005, 2009, 2010.
-# Steve Allewell <steve.allewell@gmail.com>, 2014, 2015, 2016, 2017.
+# Steve Allewell <steve.allewell@gmail.com>, 2014, 2015, 2016, 2017, 2018.
 msgid ""
 msgstr ""
 "Project-Id-Version: kvoctrain\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
-"PO-Revision-Date: 2017-11-26 21:21+0000\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
+"PO-Revision-Date: 2018-02-18 16:31+0000\n"
 "Last-Translator: Steve Allewell <steve.allewell@gmail.com>\n"
 "Language-Team: British English <kde-i18n-doc@kde.org>\n"
 "Language: en_GB\n"
@@ -355,7 +355,7 @@
 msgid "Fully learned"
 msgstr "Fully learned"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Open this vocabulary collection in the editor"
@@ -496,14 +496,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adjective"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Adverb"
@@ -618,21 +618,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Masculine"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Feminine"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neuter"
@@ -935,13 +935,13 @@
 msgstr "&Reset Confidence Levels"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verb"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Noun"
@@ -1363,7 +1363,7 @@
 msgid "This word type folder contains verbs."
 msgstr "This word type folder contains verbs."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Conjunction"
@@ -1792,23 +1792,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Share the current vocabulary collection with other users"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Properties for %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Open Vocabulary Collection"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Open in practice &mode"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1823,23 +1823,23 @@
 "\n"
 "Do you want to take over the lock?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Take Over Lock"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Opening collection \"%1\" resulted in an error: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Open Collection"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1850,12 +1850,12 @@
 "\n"
 "Save file before exit?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Open Downloaded Vocabulary Collection"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1868,37 +1868,37 @@
 "\n"
 "Do you want to take over the lock?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Writing file \"%1\" resulted in an error: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Save File"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Save Vocabulary As"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Saving %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Public Domain"
@@ -1906,34 +1906,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Languages"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "A Second Language"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lesson 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Could not open vocabulary collection \"%1\""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Could not create temporary directory \"%1\""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Could not save vocabulary collection \"%1\""
@@ -3248,6 +3248,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Visible columns in the main editor window."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr "Collapsed tree view items of statistics view window."
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4359,18 +4366,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Remove confidence levels from this unit"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Remove confidence levels from this unit and all sub-units"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Remove confidence level from this unit and all sub-units"
@@ -4407,17 +4414,17 @@
 msgid "Not practiced"
 msgstr "Not practiced"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Known to Learning"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Learning to Known"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Mixed Directions"
@@ -4500,7 +4507,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Remember for each Practice Mode"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/eo/parley.po parley-18.04.1/po/eo/parley.po
--- parley-17.12.3/po/eo/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/eo/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -6,7 +6,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2007-12-18 01:38-0500\n"
 "Last-Translator: Pierre-Marie Pédrot <pedrotpmx@wanadoo.fr>\n"
 "Language-Team: esperanto <kde-i18n-eo@kde.org>\n"
@@ -350,7 +350,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, fuzzy, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Konservi la aktivan vortoprovizan dokumenton kun malsama nomo"
@@ -491,14 +491,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, fuzzy, kde-format
 msgid "Adjective"
 msgstr "Aktiva"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, fuzzy, kde-format
 msgid "Adverb"
 msgstr "adverbo"
@@ -613,21 +613,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, fuzzy, kde-format
 msgid "Masculine"
 msgstr "&Iĉa:"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, fuzzy, kde-format
 msgid "Feminine"
 msgstr "Difina"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, fuzzy, kde-format
 msgid "Neuter"
 msgstr "Neŭ&tra:"
@@ -927,13 +927,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, fuzzy, kde-format
 msgid "Verb"
 msgstr "Verbo:"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, fuzzy, kde-format
 msgid "Noun"
 msgstr "Nenio"
@@ -1357,7 +1357,7 @@
 msgid "This word type folder contains verbs."
 msgstr ""
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, fuzzy, kde-format
 msgid "Conjunction"
 msgstr "Konjugacio"
@@ -1785,23 +1785,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Konservi la aktivan vortoprovizan dokumenton kun malsama nomo"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Ecoj de %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, fuzzy, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Vortoproviza ekzercilo"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1811,23 +1811,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Vortoproviza ekzercilo"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1838,12 +1838,12 @@
 "\n"
 "Ĉu konservi antaŭ ol forlasi?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, fuzzy, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Elŝuti novajn vortoprovizojn"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1852,37 +1852,37 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, fuzzy, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Konservi dosieron"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Konservi vortoprovizon kiel"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr ""
 "<qt>La dosiero<p><b>%1</b></p>jam ekzistas. Ĉu vi volas anstataŭigi ĝin?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Konservante %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr ""
@@ -1890,34 +1890,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Lingvoj"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Dua lingvo"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, fuzzy, kde-format
 msgid "Lesson 1"
 msgstr "Lekcio %1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Malfermi ekzemplan vortoprovizan dokumenton"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Komenci ekzercadon..."
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Malfermi ekzemplan vortoprovizan dokumenton"
@@ -3192,6 +3192,13 @@
 msgid "Visible columns in the main editor window."
 msgstr ""
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4261,18 +4268,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Forigi ĉiujn lekciojn el la ekzameno."
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Forigi ĉiujn lekciojn el la ekzameno."
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Forigi ĉiujn lekciojn el la ekzameno."
@@ -4309,17 +4316,17 @@
 msgid "Not practiced"
 msgstr "&Ĉesigi la ekzercadon"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 msgid "Mixed Directions"
 msgstr "Senordaj literoj"
@@ -4406,7 +4413,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/es/parley.po parley-18.04.1/po/es/parley.po
--- parley-17.12.3/po/es/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/es/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -4,7 +4,7 @@
 # Copyright (C) 2002,2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
 #
 # Miguel Revilla Rodríguez <yo@miguelrevilla.com>, 2002,2003.
-# Eloy Cuadra <ecuadra@eloihr.net>, 2004, 2005, 2007, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017.
+# Eloy Cuadra <ecuadra@eloihr.net>, 2004, 2005, 2007, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018.
 # Rafael Beccar <traduccioneskde@rafabeccar.com.ar>, 2004.
 # Rafael Beccar <kdemail@rafabeccar.com.ar>, 2004.
 # Rafael Beccar <rafael.beccar@kdemail.net>, 2004, 2005.
@@ -18,8 +18,8 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
-"PO-Revision-Date: 2017-08-01 12:42+0100\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
+"PO-Revision-Date: 2018-01-26 20:27+0100\n"
 "Last-Translator: Eloy Cuadra <ecuadra@eloihr.net>\n"
 "Language-Team: Spanish <kde-l10n-es@kde.org>\n"
 "Language: es\n"
@@ -374,7 +374,7 @@
 msgid "Fully learned"
 msgstr "Totalmente aprendido"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Abrir esta colección de vocabulario en el editor"
@@ -515,14 +515,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adjetivo"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Adverbio"
@@ -637,21 +637,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Masculino"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Femenino"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neutro"
@@ -956,13 +956,13 @@
 msgstr "&Restablecer los niveles de confianza"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verbo"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Sustantivo"
@@ -1387,7 +1387,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Esta carpeta de tipo de palabra contiene verbos."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Conjunción"
@@ -1820,23 +1820,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Compartir la colección de vocabulario actual con otros usuarios"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Propiedades de %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Abrir la colección de vocabulario"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Abrir en el &modo de prácticas"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1851,23 +1851,23 @@
 "\n"
 "¿Quiere asumir el bloqueo?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Asumir bloqueo"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Al abrir la colección «%1», se produjo un error: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Abrir colección"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1878,12 +1878,12 @@
 "\n"
 "¿Desea guardar el archivo antes de salir?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Abrir la colección de vocabulario descargada"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1897,36 +1897,36 @@
 "\n"
 "¿Quiere asumir el bloqueo?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "La escritura del archivo «%1» produjo un error: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Guardar archivo"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Guardar el vocabulario como"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>El archivo<p><b>%1</b></p> ya existe. ¿Desea sobrescribirlo?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Guardando %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Dominio público"
@@ -1934,34 +1934,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Idiomas"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Un segundo idioma"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lección 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "No se puede abrir la colección de vocabulario «%1»"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "No se puede crear el directorio temporal «%1»"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "No se puede guardar la colección de vocabulario «%1»"
@@ -3288,6 +3288,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Columnas visibles en la ventana del editor principal."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr "Elementos plegados en la vista de árbol de la ventana de estadísticas."
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4432,20 +4439,20 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Eliminar los niveles de confianza de esta unidad"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr ""
 "Eliminar todos los niveles de confianza de esta unidad y de todas las "
 "subunidades"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr ""
@@ -4484,17 +4491,17 @@
 msgid "Not practiced"
 msgstr "No practicado"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Conocido a nuevo"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Nuevo a conocido"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Direcciones mezcladas"
@@ -4577,7 +4584,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Recordar para cada modo de prácticas"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/et/parley.po parley-18.04.1/po/et/parley.po
--- parley-17.12.3/po/et/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/et/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -8,7 +8,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2016-12-10 00:46+0200\n"
 "Last-Translator: Marek Laane <qiilaq69@gmail.com>\n"
 "Language-Team: Estonian <kde-et@linux.ee>\n"
@@ -362,7 +362,7 @@
 msgid "Fully learned"
 msgstr "Täielikult omandatud"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Ava sõnavarakogu redaktoris"
@@ -503,14 +503,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Omadussõna"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Määrsõna"
@@ -625,21 +625,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Meessugu"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Naissugu"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Kesksugu"
@@ -942,13 +942,13 @@
 msgstr "Lä&htesta omandamistasemed"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Tegusõna"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Nimisõna"
@@ -1371,7 +1371,7 @@
 msgid "This word type folder contains verbs."
 msgstr "See sõnatüübi kaust sisaldab tegusõnu."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Sidesõna"
@@ -1799,23 +1799,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Aktiivne sõnavarakogu jagamine teiste kasutajatega"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "%1 omadused"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Sõnavarakogu avamine"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Ava harjuta&misrežiimis"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1830,23 +1830,23 @@
 "\n"
 "Kas soovid lukustuse ära muuta?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Lukustuse muutmine"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Kogu \"%1\" avamine lõppes veaga: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Kogu avamine"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1857,12 +1857,12 @@
 "\n"
 "Kas salvestada fail enne väljumist?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Allalaaditud sõnavarakogu avamine"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1876,36 +1876,36 @@
 "\n"
 "Kas soovid lukustuse ära muuta?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Faili \"%1\" kirjutamine lõppes veaga: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Faili salvestamine"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Sõnavara salvestamine"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Fail<p><b>%1</b></p>on juba olemas. Kas kirjutada see üle?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "%1 salvestamine"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Avalik omand (public domain)"
@@ -1913,34 +1913,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Keeled"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Teine keel"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Õppetund 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Sõnavarakogu \"%1\" avamine nurjus"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Ajutise kataloogi \"%1\" loomine nurjus"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Sõnavarakogu \"%1\" salvestamine nurjus"
@@ -3252,6 +3252,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Redaktori peaaknas nähtavad veerud."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4356,18 +4363,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Eemalda omandamistasemed sellest üksusest"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Eemalda omandamistasemed sellest üksusest ja kõigist allüksustest"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Omandamistaseme eemaldamine sellest üksusest ja kõigist allüksustest"
@@ -4404,17 +4411,17 @@
 msgid "Not practiced"
 msgstr "Pole harjutatud"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Teada->Õpitav"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Õpitav->Teada"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Segasuund"
@@ -4497,7 +4504,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Jäetakse iga harjutamisreziimi jaoks meelde"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/eu/parley.po parley-18.04.1/po/eu/parley.po
--- parley-17.12.3/po/eu/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/eu/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -9,7 +9,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2009-06-04 12:00+0200\n"
 "Last-Translator: Iñaki Larrañaga Murgoitio <dooteo@euskalgnu.org>\n"
 "Language-Team: Basque <itzulpena@euskalgnu.org>\n"
@@ -377,7 +377,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, fuzzy, kde-format
 #| msgid "Save the active vocabulary collection with a different name"
 msgid "Open this vocabulary collection in the editor"
@@ -527,14 +527,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adjektiboa"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Adberbioa"
@@ -650,21 +650,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Maskulinoa"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Femeninoa"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neutroa"
@@ -975,13 +975,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Aditza"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Substantiboa"
@@ -1428,7 +1428,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Hitz mota honen karpetak aditzak ditu."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, fuzzy, kde-format
 #| msgid "Conjugation"
 msgid "Conjunction"
@@ -1879,23 +1879,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Gorde hiztegi-bilduma aktiboa izen desberdin batekin"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "%1-(r)en propietateak"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Ireki hiztegi-bilduma"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Ireki ariketa &moduan"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1905,25 +1905,25 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, fuzzy, kde-format
 #| msgid "Writing file \"%1\" resulted in an error: %2"
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Errore bat gertatu da %1 fitxategia idaztean: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 #| msgid "Last Opened Collections"
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Azken irekitako bildumak"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1934,12 +1934,12 @@
 "\n"
 "Gorde fitxategia irten aurretik?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Ireki deskargatutako hiztegi-bilduma"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1948,24 +1948,24 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Errore bat gertatu da %1 fitxategia idaztean: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, fuzzy, kde-format
 #| msgid "Save File"
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Gorde fitxategia"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Gorde hiztegia honela"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
@@ -1973,14 +1973,14 @@
 "<qt><p><b>%1</b>fitxategia</p> badago lehendik ere. Gainidatzi nahi duzu?</"
 "qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "%1 gordetzen"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Domeinu publikoa"
@@ -1988,36 +1988,36 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Hizkuntzak"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Bigarren hizkuntza"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "1. ikasgaia"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 #| msgid "Downloads new vocabulary collections"
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Hiztegi-bilduma berriak deskargatzen ditu"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Start Practice"
 msgid "Could not create temporary directory \"%1\""
 msgstr "Hasi ariketak"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Downloads new vocabulary collections"
 msgid "Could not save vocabulary collection \"%1\""
@@ -3386,6 +3386,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Zutabe ikusgaiak editore nagusiaren leihoan."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4533,20 +4540,20 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit"
 msgstr "Kendu maila guztiak ikasgai honetatik"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Kendu maila guztiak ikasgai honetatik"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4588,17 +4595,17 @@
 msgid "Not practiced"
 msgstr "Landu &gabea:"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Mixed Letters"
 msgid "Mixed Directions"
@@ -4694,7 +4701,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/fa/parley.po parley-18.04.1/po/fa/parley.po
--- parley-17.12.3/po/fa/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/fa/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -8,7 +8,7 @@
 msgstr ""
 "Project-Id-Version: kvoctrain\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2007-09-02 17:53+0330\n"
 "Last-Translator: Nazanin Kazemi <kazemi@itland.ir>\n"
 "Language-Team: Persian <kde-i18n-fa@kde.org>\n"
@@ -361,7 +361,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, fuzzy, kde-format
 #| msgid "Save the active vocabulary document with a different name"
 msgid "Open this vocabulary collection in the editor"
@@ -507,14 +507,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, fuzzy, kde-format
 msgid "Adjective"
 msgstr "&معلوم‌"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "قید"
@@ -630,7 +630,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, fuzzy, kde-format
 #| msgid "&Male:"
 msgid "Masculine"
@@ -638,7 +638,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, fuzzy, kde-format
 #| msgid "Definite"
 msgid "Feminine"
@@ -646,7 +646,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, fuzzy, kde-format
 msgid "Neuter"
 msgstr "&خنثی:‌"
@@ -957,13 +957,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, fuzzy, kde-format
 msgid "Verb"
 msgstr "فعل"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, fuzzy, kde-format
 msgid "Noun"
 msgstr "اسم"
@@ -1405,7 +1405,7 @@
 msgid "This word type folder contains verbs."
 msgstr ""
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, fuzzy, kde-format
 #| msgid "Conjugation"
 msgid "Conjunction"
@@ -1842,23 +1842,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "ذخیره سند فعال واژگان با نامی متفاوت"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, fuzzy, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "ویرایش ویژگیها برای اصل"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, fuzzy, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "باز کردن سند واژگان"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, fuzzy, kde-format
 msgid "Open in practice &mode"
 msgstr "تمرین"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1868,23 +1868,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "باز کردن سند واژگان"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1895,12 +1895,12 @@
 "\n"
 "قبل از خروج، پرونده را ذخیره می‌کنید؟\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, fuzzy, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "واژگان جدید را بارگیری می‌کند"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1909,23 +1909,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr ""
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "ذخیره واژگان به عنوان"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, fuzzy, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
@@ -1933,14 +1933,14 @@
 "<qt>پرونده<br><b>%1</b><br>در حال حاضر موجود است. آیا می‌‌‌‌خواهید آن را جای‌نوشت "
 "کنید؟</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "ذخیره %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr ""
@@ -1948,35 +1948,35 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "زبانها"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, fuzzy, kde-format
 msgid "A Second Language"
 msgstr "زبان دوم"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, fuzzy, kde-format
 msgid "Lesson 1"
 msgstr "درس جدید %1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 #| msgid "Open an example vocabulary document"
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "باز کردن یک سند واژگان نمونه"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "در حال آغاز تمرین ویژه..."
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Open an example vocabulary document"
 msgid "Could not save vocabulary collection \"%1\""
@@ -3283,6 +3283,13 @@
 msgid "Visible columns in the main editor window."
 msgstr ""
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, fuzzy, kde-format
 msgctxt "CSV separator"
@@ -4382,20 +4389,20 @@
 msgid "Alt+2"
 msgstr "دگرساز+۲"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove duplicate entries from the vocabulary"
 msgid "Remove confidence levels from this unit"
 msgstr "تغییر نام مدخلهای تکراری از واژگان"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Remove duplicate entries from the vocabulary"
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "تغییر نام مدخلهای تکراری از واژگان"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Remove duplicate entries from the vocabulary"
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4436,19 +4443,19 @@
 msgid "Not practiced"
 msgstr "هنوز پرس‌وجو نشده است"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, fuzzy, kde-format
 #| msgid "&Learning"
 msgid "Known to Learning"
 msgstr "&یادگیری‌"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, fuzzy, kde-format
 #| msgid "&Learning"
 msgid "Learning to Known"
 msgstr "&یادگیری‌"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 msgid "Mixed Directions"
 msgstr "حرف تعریف"
@@ -4536,7 +4543,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/fi/parley.po parley-18.04.1/po/fi/parley.po
--- parley-17.12.3/po/fi/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/fi/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -10,7 +10,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2017-02-15 21:33+0200\n"
 "Last-Translator: Lasse Liehu <lasse.liehu@gmail.com>\n"
 "Language-Team: Finnish <kde-i18n-doc@kde.org>\n"
@@ -365,7 +365,7 @@
 msgid "Fully learned"
 msgstr "Täysin opittu"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Muokkaa tätä sanastoa"
@@ -509,14 +509,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adjektiivi"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Adverbi"
@@ -631,21 +631,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Maskuliini"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Feminiini"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neutri"
@@ -949,13 +949,13 @@
 msgstr "N&ollaa osaamisvarmuustasot"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verbi"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Substantiivi"
@@ -1376,7 +1376,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Tässä sanaluokkakansiossa on verbejä."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Konjunktio"
@@ -1806,23 +1806,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Jaa sanasto toisten käyttäjien kanssa"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Ominaisuudet: %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Avaa sanasto"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Avaa &harjoitustilassa"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1836,23 +1836,23 @@
 "\n"
 "Haluatko poistaa lukituksen?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Poista lukitus"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Sanaston ”%1” avaaminen päättyi virheeseen: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Sanaston avaaminen"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1863,12 +1863,12 @@
 "\n"
 "Haluatko tallentaa sen ennen lopettamista?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Avaa ladattu sanasto"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1881,36 +1881,36 @@
 "\n"
 "Haluatko poistaa lukituksen?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Tiedoston ”%1” kirjoittaminen päättyi virheeseen: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Tiedoston tallennus"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Tallenna sanasto nimellä"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Tiedosto<p><b>%1</b></p>on jo olemassa. Haluatko korvata sen?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Tallennetaan %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Public domain"
@@ -1918,34 +1918,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Kielet"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Toinen kieli"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Oppitunti 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Sanaston ”%1” lukeminen epäonnistui"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Väliaikaiskansion ”%1” luonti epäonnistui"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Sanaston ”%1” tallentaminen epäonnistui"
@@ -3262,6 +3262,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Muokkausikkunassa näkyvät sarakkeet."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4381,18 +4388,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Poista tasot tästä yksiköstä"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Poista osaamisvarmuustasot tästä yksiköstä aliyksiköineen"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Poista osaamisvarmuustasot tästä yksiköstä aliyksiköineen"
@@ -4429,17 +4436,17 @@
 msgid "Not practiced"
 msgstr "Ei harjoiteltu"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Tutusta opittavaan"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Opittavasta tuttuun"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Sekoitetut suunnat"
@@ -4522,7 +4529,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/fr/parley.po parley-18.04.1/po/fr/parley.po
--- parley-17.12.3/po/fr/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/fr/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -18,7 +18,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2013-11-15 14:50+0100\n"
 "Last-Translator: Bruno Patri <bruno.patri@gmail.com>\n"
 "Language-Team: French <kde-i18n-doc@kde.org>\n"
@@ -381,7 +381,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Ouvrir ce recueil de vocabulaire dans l'éditeur."
@@ -528,14 +528,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adjectif"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Adverbe"
@@ -650,21 +650,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Masculin"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Féminin"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neutre"
@@ -974,13 +974,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verbe"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Nom"
@@ -1423,7 +1423,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Ce dossier de type de mots contient des verbes."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Conjonction"
@@ -1866,23 +1866,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Partager le recueil de vocabulaire actuel avec d'autres utilisateurs"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Propriétés de %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Ouvrir un recueil de vocabulaire"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Ouvrir en mode « Exercice »"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1892,24 +1892,24 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, fuzzy, kde-format
 #| msgid "Writing file \"%1\" resulted in an error: %2"
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "L'écriture du fichier « %1 » a renvoyé l'erreur : %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Ouvrir un recueil"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1920,12 +1920,12 @@
 "\n"
 "Enregistrer le fichier avant de quitter ?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Ouvrir un recueil de vocabulaire téléchargé"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1934,37 +1934,37 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "L'écriture du fichier « %1 » a renvoyé l'erreur : %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Enregistrer un fichier"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Enregistrer le vocabulaire sous"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr ""
 "<qt>Le fichier<p><b>%1</b></p>existe déjà. Voulez-vous l'écraser ?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Enregistrement de « %1 »"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Domaine public"
@@ -1972,35 +1972,35 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Langues"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Une deuxième langue"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Leçon 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Impossible d'ouvrir le recueil de vocabulaire « %1 »"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Could not write to file \"%1\""
 msgid "Could not create temporary directory \"%1\""
 msgstr "Impossible d'écrire dans le fichier « %1 »"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Could not open vocabulary collection \"%1\""
 msgid "Could not save vocabulary collection \"%1\""
@@ -3358,6 +3358,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Colonnes visibles dans la fenêtre principale de l'éditeur."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4528,20 +4535,20 @@
 msgid "Alt+2"
 msgstr "« Alt » + « 2 »"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit"
 msgstr "Supprimer tous les niveaux de cette leçon"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Supprimer tous les niveaux de cette leçon"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4584,17 +4591,17 @@
 msgid "Not practiced"
 msgstr "Exercice non &fait :"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Mixed Letters"
 msgid "Mixed Directions"
@@ -4688,7 +4695,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/ga/parley.po parley-18.04.1/po/ga/parley.po
--- parley-17.12.3/po/ga/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/ga/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -6,7 +6,7 @@
 msgstr ""
 "Project-Id-Version: kdeedu/kvoctrain.po\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2004-12-03 14:52-0500\n"
 "Last-Translator: Kevin Scannell <kscanne@gmail.com>\n"
 "Language-Team: Irish <gaeilge-gnulinux@lists.sourceforge.net>\n"
@@ -368,7 +368,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Oscail an bailiúchán stór focal seo san eagarthóir"
@@ -517,14 +517,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Aidiacht"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Dobhriathar"
@@ -639,21 +639,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Firinscneach"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Baininscneach"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neamhinscneach"
@@ -959,13 +959,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Briathar"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Ainmfhocal"
@@ -1417,7 +1417,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Tá briathra san fhillteán seo."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Cónasc"
@@ -1861,23 +1861,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr ""
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Airíonna %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr ""
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1887,24 +1887,24 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, fuzzy, kde-format
 #| msgid "Writing file \"%1\" resulted in an error: %2"
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Tharla earráid agus comhad \"%1\" á scríobh: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Oscail Bailiúchán"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1915,12 +1915,12 @@
 "\n"
 "Sábháil an comhad roimh scor?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr ""
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1929,23 +1929,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Tharla earráid agus comhad \"%1\" á scríobh: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Sábháil Comhad"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Sábháil an Stór Focal Mar"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
@@ -1953,14 +1953,14 @@
 "<qt>Tá comhad <p><b>%1</b></p> ann cheana. An bhfuil tú cinnte gur mian leat "
 "scríobh air?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "%1 á shábháil"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Fearann Poiblí"
@@ -1968,36 +1968,36 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Teangacha"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "An Dara Teanga"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Ceacht 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 #| msgid "Could not read collection from \"%1\""
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Níorbh fhéidir an bailiúchán a léamh ó \"%1\""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Could not read collection from \"%1\""
 msgid "Could not create temporary directory \"%1\""
 msgstr "Níorbh fhéidir an bailiúchán a léamh ó \"%1\""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Could not read collection from \"%1\""
 msgid "Could not save vocabulary collection \"%1\""
@@ -3325,6 +3325,13 @@
 msgid "Visible columns in the main editor window."
 msgstr ""
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4420,20 +4427,20 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit"
 msgstr "Bain gach grád ón cheacht seo"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Bain gach grád ón cheacht seo"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4476,19 +4483,19 @@
 msgid "Not practiced"
 msgstr "Gan &chleachtadh fós:"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, fuzzy, kde-format
 #| msgid "&Learning"
 msgid "Known to Learning"
 msgstr "Fogh&laim"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, fuzzy, kde-format
 #| msgid "&Learning"
 msgid "Learning to Known"
 msgstr "Fogh&laim"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr ""
@@ -4581,7 +4588,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/gl/parley.po parley-18.04.1/po/gl/parley.po
--- parley-17.12.3/po/gl/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/gl/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -10,14 +10,14 @@
 # Marce Villarino <mvillarino@gmail.com>, 2009.
 # Marce Villarino <mvillarino@kde-espana.es>, 2012, 2013, 2014.
 # Adrián Chaves Fernández <adriyetichaves@gmail.com>, 2015, 2016, 2017.
-# Adrián Chaves (Gallaecio) <adrian@chaves.io>, 2017.
+# Adrián Chaves (Gallaecio) <adrian@chaves.io>, 2017, 2018.
 msgid ""
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
-"PO-Revision-Date: 2017-11-16 21:23+0100\n"
-"Last-Translator: Adrián Chaves (Gallaecio) <adrian@chaves.io>\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
+"PO-Revision-Date: 2018-04-29 23:30+0100\n"
+"Last-Translator: Adrian Chaves <adrian@chaves.io>\n"
 "Language-Team: Galician <kde-i18n-doc@kde.org>\n"
 "Language: gl\n"
 "MIME-Version: 1.0\n"
@@ -267,16 +267,14 @@
 msgstr "Pronuncia"
 
 #: src/collection/vocabularymodel.cpp:293
-#, fuzzy, kde-format
-#| msgid "Pronunciation"
+#, kde-format
 msgid "Pronunciation (%1)"
-msgstr "Pronuncia"
+msgstr "Pronuncia (%1)"
 
 #: src/collection/vocabularymodel.cpp:295
-#, fuzzy, kde-format
-#| msgid "Word Type"
+#, kde-format
 msgid "Word Type (%1)"
-msgstr "Tipo de palabra"
+msgstr "Tipo de palabra (%1)"
 
 #: src/collection/vocabularymodel.cpp:295
 #, kde-format
@@ -290,17 +288,14 @@
 msgstr "Sinónimo"
 
 #: src/collection/vocabularymodel.cpp:297
-#, fuzzy, kde-format
-#| msgid "Synonym: "
+#, kde-format
 msgid "Synonym (%1)"
-msgstr "Sinónimo: "
+msgstr "Sinónimo (%1)"
 
 #: src/collection/vocabularymodel.cpp:299
-#, fuzzy, kde-format
-#| msgctxt "Title for a list of antonyms (opposites) for a word"
-#| msgid "Antonyms of %1:"
+#, kde-format
 msgid "Antonym (%1)"
-msgstr "Antónimos de %1:"
+msgstr "Antónimo (%1)"
 
 #: src/collection/vocabularymodel.cpp:299
 #, kde-format
@@ -314,10 +309,9 @@
 msgstr "Exemplo"
 
 #: src/collection/vocabularymodel.cpp:301
-#, fuzzy, kde-format
-#| msgid "Example"
+#, kde-format
 msgid "Example (%1)"
-msgstr "Exemplo"
+msgstr "Exemplo (%1)"
 
 #. i18n: ectx: property (text), widget (QLabel, label_6)
 #: src/collection/vocabularymodel.cpp:303 src/editor/summarywordwidget.ui:103
@@ -326,10 +320,9 @@
 msgstr "Comentario"
 
 #: src/collection/vocabularymodel.cpp:303
-#, fuzzy, kde-format
-#| msgid "Comment"
+#, kde-format
 msgid "Comment (%1)"
-msgstr "Comentario"
+msgstr "Comentario (%1)"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/collection/vocabularymodel.cpp:305 src/editor/summarywordwidget.ui:87
@@ -338,10 +331,9 @@
 msgstr "Paráfrase"
 
 #: src/collection/vocabularymodel.cpp:305
-#, fuzzy, kde-format
-#| msgid "Paraphrase"
+#, kde-format
 msgid "Paraphrase (%1)"
-msgstr "Paráfrase"
+msgstr "Paráfrase (%1)"
 
 #: src/collection/vocabularymodel.cpp:324
 #, kde-format
@@ -364,20 +356,18 @@
 msgstr "Non escolliches ningunha unidade"
 
 #: src/dashboard/barwidget.cpp:137
-#, fuzzy, kde-format
-#| msgid "%1 word due"
-#| msgid_plural "%1 words due"
+#, kde-format
 msgid "%1 word due"
 msgid_plural "%1 words due"
-msgstr[0] "Falta %1 palabra"
-msgstr[1] "Faltan %1 palabras"
+msgstr[0] "Falta %1 palabra."
+msgstr[1] "Faltan %1 palabras."
 
 #: src/dashboard/barwidget.cpp:140
 #, kde-format
 msgid "Fully learned"
 msgstr "Aprendido"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Abrir esta colección de vocabulario no editor"
@@ -478,12 +468,12 @@
 #: src/editor/comparisonwidget.cpp:88
 #, kde-format
 msgid "Could not determine word type of adjectives"
-msgstr "Non foi posíbel determinar o tipo de palabra dos adxectivos"
+msgstr "Non se puido determinar o tipo de palabra dos adxectivos"
 
 #: src/editor/comparisonwidget.cpp:107
 #, kde-format
 msgid "Could not determine word type of adverbs"
-msgstr "Non foi posíbel determinar o tipo de palabra dos adverbios"
+msgstr "Non se puido determinar o tipo de palabra dos adverbios"
 
 #. i18n: ectx: property (toolTip), widget (QLabel, absoluteLabel)
 #. i18n: ectx: property (toolTip), widget (QLabel, comparativeLabel)
@@ -518,14 +508,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adxectivo"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Adverbio"
@@ -640,21 +630,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Masculino"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Feminino"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neutro"
@@ -957,13 +947,13 @@
 msgstr "&Restabelecer os niveis de seguridade"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verbo"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Substantivo"
@@ -1386,7 +1376,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Este cartafol de clase de palabra contén verbos."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Conxunción"
@@ -1441,7 +1431,7 @@
 #: src/exportdialog.cpp:111
 #, kde-format
 msgid "Could not write to file \"%1\""
-msgstr "Non foi posíbel escribir no ficheiro «%1»"
+msgstr "Non se puido escribir no ficheiro «%1»"
 
 #: src/exportdialog.cpp:127
 #, kde-format
@@ -1819,23 +1809,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Compartir o documento de vocabulario con outros usuarios"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Propiedades de %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Abrir unha colección de vocabulario"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Abrir no &modo de práctica"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1850,23 +1840,23 @@
 "\n"
 "Quere ignorar o bloqueo?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Ignorar o bloqueo"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Ao abrir a colección «%1» produciuse un erro: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Abrir colección"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1877,12 +1867,12 @@
 "\n"
 "Queres gardar o ficheiro antes de saír?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Abrir unha colección vocabulario descargada"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1896,36 +1886,36 @@
 "\n"
 "Quere ignorar o bloqueo?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Ao escribir o ficheiro «%1» produciuse un erro: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Gardar o ficheiro"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Gardar o vocabulario como"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>O ficheiro <p><b>%1</b></p>xa existe. Quere substituílo?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Estase a gardar %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Dominio público"
@@ -1933,37 +1923,37 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Idiomas"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Un segundo idioma"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lección 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
-msgstr "Non foi posíbel abrir a colección de vocabulario «%1»"
+msgstr "Non se puido abrir a colección de vocabulario «%1»"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
-msgstr "Non foi posíbel crear o directorio temporal «%1»."
+msgstr "Non se puido crear o directorio temporal «%1»."
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
-msgstr "Non foi posíbel gardar a colección de vocabulario «%1»."
+msgstr "Non se puido gardar a colección de vocabulario «%1»."
 
 #: src/parleymainwindow.cpp:156
 #, kde-format
@@ -2849,12 +2839,12 @@
 #: src/practice/practicesummarycomponent.cpp:197
 #, kde-format
 msgid "Could not write to %1"
-msgstr "Non foi posíbel escribir en %1"
+msgstr "Non se puido escribir en %1"
 
 #: src/practice/practicesummarycomponent.cpp:198
 #, kde-format
 msgid "Could not write file"
-msgstr "Non foi posíbel escribir no ficheiro"
+msgstr "Non se puido escribir no ficheiro"
 
 #. i18n: ectx: property (text), widget (QTableWidget, tableWidget)
 #: src/practice/practicesummarywidget.ui:28
@@ -2882,7 +2872,7 @@
 #: src/practice/sessionmanagerbase.cpp:68
 #, kde-format
 msgid "Could not start practice"
-msgstr "Non foi posíbel comezar a práctica"
+msgstr "Non se puido comezar a práctica"
 
 #: src/practice/statustoggle.cpp:86
 #, kde-format
@@ -3104,8 +3094,8 @@
 #, kde-format
 msgid "A script could not be activated and has been disabled."
 msgid_plural "%1 scripts could not be activated and have been disabled."
-msgstr[0] "Non foi posíbel activar un script e desactivouse."
-msgstr[1] "Non foi posíbel activar %1 scripts e desactiváronse."
+msgstr[0] "Non se puido activar un script e desactivouse."
+msgstr[1] "Non se puido activar %1 scripts e desactiváronse."
 
 #: src/scripts/scriptmanager.cpp:140
 #, kde-format
@@ -3282,6 +3272,14 @@
 msgid "Visible columns in the main editor window."
 msgstr "As columnas visíbeis na xanela principal do editor."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+"Elementos colapsados da vista de árbore da xanela da vista de estatísticas."
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -3523,7 +3521,7 @@
 "The selected user defined tense could not be deleted\n"
 "because it is in use."
 msgstr ""
-"Non foi posíbel eliminar este tempo definido\n"
+"Non se puido eliminar este tempo definido\n"
 "polo usuario porque está en uso."
 
 #: src/settings/languagepropertiespage.cpp:408
@@ -4153,8 +4151,8 @@
 "The entry must have been answered incorrectly at least this often to be "
 "included in the practice."
 msgstr ""
-"A entrada tivo que ser respondida mal como mínimo esta cantidade de veces "
-"para ser incluída na práctica."
+"A entrada tivo que responderse mal como mínimo esta cantidade de veces para "
+"incluírse na práctica."
 
 #. i18n: ectx: label, entry (PracticeMaximumWrongCount), group (Thresholds)
 #: src/settings/parley.kcfg:280
@@ -4163,8 +4161,8 @@
 "The entry must have been answered incorrectly at most this often to be "
 "included in the practice."
 msgstr ""
-"A entrada tivo que ser respondida mal como máximo esta cantidade de veces "
-"para ser incluída na práctica."
+"A entrada tivo que responderse mal como máximo esta cantidade de veces para "
+"incluírse na práctica."
 
 #. i18n: ectx: label, entry (PracticeMinimumGrade), group (Thresholds)
 #: src/settings/parley.kcfg:285
@@ -4263,12 +4261,13 @@
 #, kde-format
 msgid "If true, the practice direction for each practice mode is stored."
 msgstr ""
+"Se é certo, almacénase a dirección de práctica de cada modo de práctica."
 
 #. i18n: ectx: whatsthis, entry (RememberPracticeDirection), group (PracticeManager)
 #: src/settings/parley.kcfg:376
 #, kde-format
 msgid "Should the practice direction for each practice mode be stored?"
-msgstr ""
+msgstr "Debería almacenarse a dirección da práctica de cada modo de práctica?"
 
 #. i18n: ectx: label, entry (PracticeDirectionsByPracticeMode), group (PracticeManager)
 #. i18n: ectx: whatsthis, entry (PracticeDirectionsByPracticeMode), group (PracticeManager)
@@ -4276,6 +4275,7 @@
 #, kde-format
 msgid "Stored values of practice direction for each practice mode."
 msgstr ""
+"Almacena os valores da dirección da práctica para cada modo de práctica."
 
 #. i18n: ectx: label, entry (ProvidersUrl), group (KNewStuff)
 #: src/settings/parley.kcfg:387
@@ -4416,18 +4416,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Retirar os niveis de seguridade desta unidade"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Retirar os niveis de seguridade desta unidade e das súas subunidades"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Retirar os niveis de seguridade desta unidade e das súas subunidades"
@@ -4464,17 +4464,17 @@
 msgid "Not practiced"
 msgstr "Non practicado"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Do coñecido ao descoñecido"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Do descoñecido ao coñecido"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Direccións mesturadas"
@@ -4493,10 +4493,9 @@
 
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxPracticeMode)
 #: src/statistics/statisticsmainwindow.ui:75
-#, fuzzy, kde-format
-#| msgid "Practice Mode:"
+#, kde-format
 msgid "Practice Mode"
-msgstr "Modo de práctica:"
+msgstr "Modo de práctica"
 
 #. i18n: ectx: property (text), widget (QRadioButton, flashCard)
 #: src/statistics/statisticsmainwindow.ui:81
@@ -4506,38 +4505,33 @@
 
 #. i18n: ectx: property (text), widget (QRadioButton, mixedLetters)
 #: src/statistics/statisticsmainwindow.ui:91
-#, fuzzy, kde-format
-#| msgid "Mixed Letters"
+#, kde-format
 msgid "Mixed &Letters"
-msgstr "Letras mesturadas"
+msgstr "&Letras mesturadas"
 
 #. i18n: ectx: property (text), widget (QRadioButton, multipleChoice)
 #: src/statistics/statisticsmainwindow.ui:98
-#, fuzzy, kde-format
-#| msgid "Multiple Choice"
+#, kde-format
 msgid "M&ultiple Choice"
-msgstr "Escolla múltipla"
+msgstr "Esc&olla múltipla"
 
 #. i18n: ectx: property (text), widget (QRadioButton, written)
 #: src/statistics/statisticsmainwindow.ui:105
-#, fuzzy, kde-format
-#| msgid "Written"
+#, kde-format
 msgid "Wri&tten"
-msgstr "Escrito"
+msgstr "Escri&to"
 
 #. i18n: ectx: property (text), widget (QRadioButton, exampleSentence)
 #: src/statistics/statisticsmainwindow.ui:115
-#, fuzzy, kde-format
-#| msgid "Example Sentences"
+#, kde-format
 msgid "E&xample Sentences"
-msgstr "Frases de exemplo"
+msgstr "Frases de e&xemplo"
 
 #. i18n: ectx: property (text), widget (QRadioButton, gender)
 #: src/statistics/statisticsmainwindow.ui:125
-#, fuzzy, kde-format
-#| msgid "Gender of Nouns"
+#, kde-format
 msgid "&Gender of Nouns"
-msgstr "Xénero dos substantivos"
+msgstr "&Xénero dos substantivos"
 
 #. i18n: ectx: property (text), widget (QRadioButton, comparisonForms)
 #: src/statistics/statisticsmainwindow.ui:135
@@ -4547,10 +4541,9 @@
 
 #. i18n: ectx: property (text), widget (QRadioButton, conjugations)
 #: src/statistics/statisticsmainwindow.ui:145
-#, fuzzy, kde-format
-#| msgid "Conjugations"
+#, kde-format
 msgid "Co&njugations"
-msgstr "Conxugacións"
+msgstr "Co&nxugacións"
 
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxPracticeDirection)
 #: src/statistics/statisticsmainwindow.ui:191
@@ -4562,9 +4555,9 @@
 #: src/statistics/statisticsmainwindow.ui:200
 #, kde-format
 msgid "Remember for each Practice Mode"
-msgstr ""
+msgstr "Lembrar para cada modo de práctica."
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/he/parley.po parley-18.04.1/po/he/parley.po
--- parley-17.12.3/po/he/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/he/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -8,7 +8,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2017-05-16 07:00-0400\n"
 "Last-Translator: Copied by Zanata <copied-by-zanata@zanata.org>\n"
 "Language-Team: Hebrew <kde-l10n-he@kde.org>\n"
@@ -353,7 +353,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, fuzzy, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "פתח מסמך אוצר מילים"
@@ -494,14 +494,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, fuzzy, kde-format
 msgid "Adjective"
 msgstr "פ&עיל"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "תואר הפועל"
@@ -616,21 +616,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, fuzzy, kde-format
 msgid "Masculine"
 msgstr "&זכר:"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, fuzzy, kde-format
 msgid "Feminine"
 msgstr "מוגדר"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, fuzzy, kde-format
 msgid "Neuter"
 msgstr "נ&ייטרלי:"
@@ -930,13 +930,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, fuzzy, kde-format
 msgid "Verb"
 msgstr "פעל"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "שם עצם"
@@ -1354,7 +1354,7 @@
 msgid "This word type folder contains verbs."
 msgstr ""
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, fuzzy, kde-format
 msgid "Conjunction"
 msgstr "נטיית פעלים"
@@ -1777,23 +1777,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "פתח מסמך אוצר מילים"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, fuzzy, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "ערוך את מאפייני המקור"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, fuzzy, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "פתח מסמך אוצר מילים"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, fuzzy, kde-format
 msgid "Open in practice &mode"
 msgstr "תווית"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1803,23 +1803,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "פתח מסמך אוצר מילים"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1830,12 +1830,12 @@
 "\n"
 "האם ברצונך לשמור לפני היציאה?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, fuzzy, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "מוריד מסמכי אוצר מילים חדשים"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1844,36 +1844,36 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr ""
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "שמור אוצר מילים בשם"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, fuzzy, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>הקובץ <br> <b>%1</b> <br>קיים. האם ברצונך לשכתב אותו?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, fuzzy, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "שומר %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr ""
@@ -1881,34 +1881,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "שפות"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, fuzzy, kde-format
 msgid "A Second Language"
 msgstr "&הוסף שפה"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, fuzzy, kde-format
 msgid "Lesson 1"
 msgstr "יוצר שיעורים"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "פתח מסמך אוצר מילים"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "לא ניתן לקרא"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "פתח מסמך אוצר מילים"
@@ -3185,6 +3185,13 @@
 msgid "Visible columns in the main editor window."
 msgstr ""
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, fuzzy, kde-format
 msgctxt "CSV separator"
@@ -4254,18 +4261,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "הסר רשומות בעלות תוכן זהה מאוצר המילים"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "הסר רשומות בעלות תוכן זהה מאוצר המילים"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "הסר רשומות בעלות תוכן זהה מאוצר המילים"
@@ -4302,17 +4309,17 @@
 msgid "Not practiced"
 msgstr "לא בשאילתה"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, fuzzy, kde-format
 msgid "Known to Learning"
 msgstr "&לימוד"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, fuzzy, kde-format
 msgid "Learning to Known"
 msgstr "&לימוד"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 msgid "Mixed Directions"
 msgstr "תווית"
@@ -4395,7 +4402,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/hi/parley.po parley-18.04.1/po/hi/parley.po
--- parley-17.12.3/po/hi/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/hi/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -7,7 +7,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2007-12-21 17:53+0530\n"
 "Last-Translator: Ravishankar Shrivastava <raviratlami@yahoo.com>\n"
 "Language-Team: Hindi <indlinux-hindi@lists.sourceforge.net>\n"
@@ -389,7 +389,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, fuzzy, kde-format
 #| msgid "Save the active vocabulary document with a different name"
 msgid "Open this vocabulary collection in the editor"
@@ -549,7 +549,7 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, fuzzy, kde-format
 #| msgctxt "state of a row"
 #| msgid "Active"
@@ -558,7 +558,7 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr ""
@@ -674,7 +674,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, fuzzy, kde-format
 #| msgid "&Male:"
 msgid "Masculine"
@@ -682,7 +682,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, fuzzy, kde-format
 #| msgid "Definite"
 msgid "Feminine"
@@ -690,7 +690,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, fuzzy, kde-format
 #| msgid "Neu&ter:"
 msgid "Neuter"
@@ -1023,14 +1023,14 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, fuzzy, kde-format
 #| msgid "Verb:"
 msgid "Verb"
 msgstr "क्रियाः"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, fuzzy, kde-format
 #| msgctxt ""
 #| "@item:inlistbox selection for word types with special meaning in the "
@@ -1493,7 +1493,7 @@
 msgid "This word type folder contains verbs."
 msgstr ""
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, fuzzy, kde-format
 #| msgid "Conjugation"
 msgid "Conjunction"
@@ -1948,25 +1948,25 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "सक्रिय शब्दावली दस्तावेज़ को एक नए नाम से सहेजें"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr " %1 के लिए गुण"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, fuzzy, kde-format
 #| msgid "Open Vocabulary Document"
 msgid "Open Vocabulary Collection"
 msgstr "शब्दावली दस्तावेज़ खोलें"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, fuzzy, kde-format
 #| msgid "&Last Practiced"
 msgid "Open in practice &mode"
 msgstr "पिछला अभ्यास (&L)"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1976,25 +1976,25 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, fuzzy, kde-format
 #| msgid "Writing file \"%1\" resulted in an error: %2"
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "फ़ाइल \"%1\" में लिखने की कोशिश में त्रुटि : %2 हुई"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 #| msgid "Open Vocabulary Document"
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "शब्दावली दस्तावेज़ खोलें"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -2005,13 +2005,13 @@
 "\n"
 "बाहर होने से पहले सहेजें?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, fuzzy, kde-format
 #| msgid "Downloads new vocabularies"
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "नई शब्दावलियाँ डाउनलोड करें"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -2020,38 +2020,38 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "फ़ाइल \"%1\" में लिखने की कोशिश में त्रुटि : %2 हुई"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, fuzzy, kde-format
 #| msgid "Save File"
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "फ़ाइल सहेजें"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "शब्दावली ऐसे सहेजें"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr ""
 "<qt>फ़ाइल<p><b>%1</b></p>पहले से ही मौज़ूद है. क्या आप इसे मिटाकर लिखना चाहते हैं?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "सहेज रहे %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr ""
@@ -2059,37 +2059,37 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "भाषाएं"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "द्वितीय भाषा"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, fuzzy, kde-format
 #| msgid "Lesson %1"
 msgid "Lesson 1"
 msgstr "सबक %1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 #| msgid "Open an example vocabulary document"
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "एक उदाहरण शब्दावली दस्तावेज़ खोलें"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Start Practice..."
 msgid "Could not create temporary directory \"%1\""
 msgstr "अभ्यास प्रारंभ करें..."
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Open an example vocabulary document"
 msgid "Could not save vocabulary collection \"%1\""
@@ -3446,6 +3446,13 @@
 msgid "Visible columns in the main editor window."
 msgstr ""
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4565,20 +4572,20 @@
 msgid "Alt+2"
 msgstr "ऑल्ट+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove all lessons from the test."
 msgid "Remove confidence levels from this unit"
 msgstr "जांच में से सभी सबक मिटाएँ."
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Remove all lessons from the test."
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "जांच में से सभी सबक मिटाएँ."
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Remove all lessons from the test."
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4621,17 +4628,17 @@
 msgid "Not practiced"
 msgstr "अभ्यास नहीं किया गया: (&p)"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 msgid "Mixed Directions"
 msgstr "मिले जुले अक्षर युक्त अभ्यास"
@@ -4725,7 +4732,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/hr/parley.po parley-18.04.1/po/hr/parley.po
--- parley-17.12.3/po/hr/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/hr/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -6,7 +6,7 @@
 msgstr ""
 "Project-Id-Version: kvoctrain 0\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2010-09-08 16:06+0200\n"
 "Last-Translator: Marko Dimjasevic <marko@dimjasevic.net>\n"
 "Language-Team: Croatian <kde-croatia-list@lists.sourceforge.net>\n"
@@ -374,7 +374,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Otvori ovu rječničku kolekciju u uređivaču"
@@ -520,14 +520,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Pridjev"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Prilog"
@@ -643,21 +643,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Muški"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Ženski"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Srednji"
@@ -969,13 +969,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Glagol"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Imenica"
@@ -1414,7 +1414,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Ova mapa vrsti riječi sadrži glagole."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, fuzzy, kde-format
 #| msgid "Conjugation"
 msgid "Conjunction"
@@ -1858,23 +1858,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Podijeli trenutni rječničku kolekciju s ostalim korisnicima"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Svojstva za %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Otvori rječnik"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Otvori u načinu za vježbanje"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1884,25 +1884,25 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, fuzzy, kde-format
 #| msgid "Writing file \"%1\" resulted in an error: %2"
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Pisanje u datoteku \"%1\" rezultiralo je pogreškom: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 #| msgid "Last Opened Collections"
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Zadnje otvorene kolekcije"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1913,12 +1913,12 @@
 "\n"
 "Snimiti prije izlaska?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Otvori preuzeti rječnik"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1927,37 +1927,37 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Pisanje u datoteku \"%1\" rezultiralo je pogreškom: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, fuzzy, kde-format
 #| msgid "Save File"
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Spremi datoteku"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Spremi rječnik kao"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Datoteka<p><b>%1</b></p>već postoji. Želite li ju prebrisati?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Spremanje %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Javna domena"
@@ -1965,35 +1965,35 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Jezici"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Drugi jezik"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lekcija 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Otvori datoteka sa primjerom rječnika"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Could not start practice"
 msgid "Could not create temporary directory \"%1\""
 msgstr "Nije moguće pokrenuti vježbu"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Downloads new vocabulary collections"
 msgid "Could not save vocabulary collection \"%1\""
@@ -3367,6 +3367,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Vidljivi stupci u glavnom prozoru uređivača."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4509,19 +4516,19 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit"
 msgstr "Ukloni sve ocjene iz ove lekcije"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr ""
@@ -4563,17 +4570,17 @@
 msgid "Not practiced"
 msgstr "Nije &vježbano:"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, fuzzy, kde-format
 msgid "Known to Learning"
 msgstr "&Učenje"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, fuzzy, kde-format
 msgid "Learning to Known"
 msgstr "&Učenje"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Mixed Letters"
 msgid "Mixed Directions"
@@ -4667,7 +4674,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/hu/parley.po parley-18.04.1/po/hu/parley.po
--- parley-17.12.3/po/hu/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/hu/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -6,7 +6,7 @@
 msgstr ""
 "Project-Id-Version: KDE 4.0\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2014-07-09 00:26+0200\n"
 "Last-Translator: Balázs Úr <urbalazs@gmail.com>\n"
 "Language-Team: Hungarian <kde-l10n-hu@kde.org>\n"
@@ -368,7 +368,7 @@
 msgid "Fully learned"
 msgstr "Teljesen megtanulva"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Kinyitja ezt a szókészletgyűjteményt a szerkesztőben"
@@ -515,14 +515,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Melléknév"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Határozószó"
@@ -637,21 +637,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Hímnemű"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Nőnemű"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Semleges nemű"
@@ -961,13 +961,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Ige"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Főnév"
@@ -1409,7 +1409,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Ez a szótípus mappa igéket tartalmaz."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Kötőszó"
@@ -1845,23 +1845,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Az aktuális szókészletet megosztja más felhasználókkal"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Tulajdonságok: %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Szókészlet gyűjtemény megnyitása"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Gyakorló mód megnyitása"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1871,24 +1871,24 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, fuzzy, kde-format
 #| msgid "Writing file \"%1\" resulted in an error: %2"
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Hiba történt a következő fájl írásakor: \"%1\". %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Gyűjtemény megnyitása"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1899,12 +1899,12 @@
 "\n"
 "El szeretné menteni a fájlt kilépés előtt?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Letöltött szógyűjtemények megnyitása"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1913,36 +1913,36 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Hiba történt a következő fájl írásakor: \"%1\". %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Fájl mentése"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "A szótár mentése mint"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Már létezik<p><b>%1</b></p>nevű fájl. Felül szeretné írni?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "%1 mentése"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Közkincs"
@@ -1950,35 +1950,35 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Nyelvek"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Egy második nyelv"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "1. lecke"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Nem sikerült megnyitni a(z) „%1” szókészlet gyűjteményt"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Could not write to file \"%1\""
 msgid "Could not create temporary directory \"%1\""
 msgstr "Nem sikerült írni a(z) „%1” fájlba"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Could not open vocabulary collection \"%1\""
 msgid "Could not save vocabulary collection \"%1\""
@@ -3307,6 +3307,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Látható oszlopok a fő szerkesztőablakban."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4457,20 +4464,20 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove grades from this lesson"
 msgid "Remove confidence levels from this unit"
 msgstr "Szintek eltávolítása ebből a leckéből"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Remove grades from this lesson and all sub-lessons"
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Szintek eltávolítása ebből a leckéből és minden részleckéből"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Remove grades from this lesson and all sub-lessons"
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4513,17 +4520,17 @@
 msgid "Not practiced"
 msgstr "Nem gyakorolt"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Mixed Letters"
 msgid "Mixed Directions"
@@ -4617,7 +4624,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/is/parley.po parley-18.04.1/po/is/parley.po
--- parley-17.12.3/po/is/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/is/parley.po	2018-05-08 00:10:52.000000000 +0000
@@ -7,7 +7,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2009-12-03 16:53+0000\n"
 "Last-Translator: Sveinn í Felli <sveinki@nett.is>\n"
 "Language-Team: Icelandic <kde-isl@molar.is>\n"
@@ -376,7 +376,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, fuzzy, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Vistar núverandi skjal"
@@ -521,14 +521,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, fuzzy, kde-format
 msgid "Adjective"
 msgstr "&Virk"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Atviksorð"
@@ -649,7 +649,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, fuzzy, kde-format
 #| msgid "&Male:"
 msgid "Masculine"
@@ -657,7 +657,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, fuzzy, kde-format
 #| msgid "Definite"
 msgid "Feminine"
@@ -665,7 +665,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, fuzzy, kde-format
 #| msgid "Neu&tral:"
 msgid "Neuter"
@@ -986,14 +986,14 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, fuzzy, kde-format
 #| msgid "Verb"
 msgid "Verb"
 msgstr "Sögn"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Nafnorð"
@@ -1425,7 +1425,7 @@
 msgid "This word type folder contains verbs."
 msgstr ""
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, fuzzy, kde-format
 #| msgid "Conjugation"
 msgid "Conjunction"
@@ -1862,25 +1862,25 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Vistar núverandi skjal"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, fuzzy, kde-format
 #| msgid "Edit Properties for Original"
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Breyta eiginleikum upprunalegs"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, fuzzy, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Opna dæmi um orðaforðaskrá"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, fuzzy, kde-format
 #| msgid "Article"
 msgid "Open in practice &mode"
 msgstr "Greinir"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1890,23 +1890,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Opna dæmi um orðaforðaskrá"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1917,12 +1917,12 @@
 "\n"
 "Á að vista áður en þú hættir?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, fuzzy, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Opna orðaforðaskrá"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1931,23 +1931,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, fuzzy, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Vista skrá"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Vista orðaforða sem"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, fuzzy, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
@@ -1955,7 +1955,7 @@
 "Skráin sem þú valdir er þegar til.\n"
 "Viltu skrifa yfir \"%1\"?"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, fuzzy, kde-format
 #| msgid "Saving %1"
 msgctxt "@info:status saving a file"
@@ -1963,7 +1963,7 @@
 msgstr "Vista %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, fuzzy, kde-format
 msgid "Public Domain"
 msgstr "Public Domain"
@@ -1971,36 +1971,36 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, fuzzy, kde-format
 msgid "Languages"
 msgstr "&Tungumál"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, fuzzy, kde-format
 #| msgid "&Append Language"
 msgid "A Second Language"
 msgstr "Bæt&a við tungumáli"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, fuzzy, kde-format
 msgid "Lesson 1"
 msgstr "Býr til verkefni"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Opna orðaforðaskrá"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Start Practice"
 msgid "Could not create temporary directory \"%1\""
 msgstr "Byrja æfingu"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Opna orðaforðaskrá"
@@ -3338,6 +3338,13 @@
 msgid "Visible columns in the main editor window."
 msgstr ""
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, fuzzy, kde-format
 msgctxt "CSV separator"
@@ -4438,18 +4445,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Fjarlægir færslur með saman innihaldi úr orðaforða"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Fjarlægir færslur með saman innihaldi úr orðaforða"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Fjarlægir færslur með saman innihaldi úr orðaforða"
@@ -4488,17 +4495,17 @@
 msgid "Not practiced"
 msgstr "Ekki spurt"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Article"
 msgid "Mixed Directions"
@@ -4590,7 +4597,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/it/parley.po parley-18.04.1/po/it/parley.po
--- parley-17.12.3/po/it/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/it/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -10,7 +10,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2016-12-11 12:28+0100\n"
 "Last-Translator: Pino Toscano <toscano.pino@tiscali.it>\n"
 "Language-Team: Italian <kde-i18n-it@kde.org>\n"
@@ -365,7 +365,7 @@
 msgid "Fully learned"
 msgstr "Appreso a pieno"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Apri questa collezione di vocaboli nell'editor"
@@ -506,14 +506,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Aggettivo"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Avverbio"
@@ -628,21 +628,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Maschile"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Femminile"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neutro"
@@ -945,13 +945,13 @@
 msgstr "Azze&ra livelli di fiducia"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verbo"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Nome"
@@ -1373,7 +1373,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Questa cartella di tipi di parola contiene verbi."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Congiunzione"
@@ -1804,23 +1804,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Condividi la collezione di vocaboli corrente con altri utenti"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Proprietà di %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Apri collezione di vocaboli"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Apri in &modalità esercitazione"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1835,23 +1835,23 @@
 "\n"
 "Vuoi prendere il controllo del blocco?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Prendi il controllo"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Si è verificato un errore durante l'apertura del file «%1»: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Apri collezione"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1862,12 +1862,12 @@
 "\n"
 "Salvare il file prima di uscire?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Apri collezione di vocaboli scaricata"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1881,36 +1881,36 @@
 "\n"
 "Vuoi prendere il controllo del blocco?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Si è verificato un errore durante la scrittura del file «%1»: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Salvataggio file"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Salva il vocabolario come"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Il file<p><b>%1</b></p>esiste già. Vuoi sovrascriverlo?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Salvataggio di %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Pubblico dominio"
@@ -1918,34 +1918,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Lingue"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Una seconda lingua"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lezione 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Non è stato possibile aprire la collezione di vocaboli «%1»"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Non è stato possibile creare la directory temporanea «%1»"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Non è stato possibile salvare la collezione di vocaboli «%1»"
@@ -3275,6 +3275,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Colonne visibili nella finestra dell'editor principale."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4413,18 +4420,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Rimuovi livelli di fiducia da questa unità"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Rimuovi livelli di fiducia da questa unità e da tutte le sotto-unità"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Rimuovi livelli di fiducia da questa unità e da tutte le sotto-unità"
@@ -4462,17 +4469,17 @@
 msgid "Not practiced"
 msgstr "Non ancora esercitato"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Da «conosciuta» a «da imparare»"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Da «da imparare» a «conosciuta»"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Entrambe le direzioni"
@@ -4555,7 +4562,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Ricorda in ciascuna modalità di esercitazione"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/ja/parley.po parley-18.04.1/po/ja/parley.po
--- parley-17.12.3/po/ja/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/ja/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -10,7 +10,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2011-04-24 00:32-0700\n"
 "Last-Translator: Fumiaki Okushi <okushi@kde.gr.jp>\n"
 "Language-Team: Japanese <kde-jp@kde.org>\n"
@@ -373,7 +373,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "この語彙コレクションをエディタで開く"
@@ -519,14 +519,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "形容詞"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "副詞"
@@ -642,21 +642,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "男性"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "女性"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "中性"
@@ -970,13 +970,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "動詞"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "名詞"
@@ -1425,7 +1425,7 @@
 msgid "This word type folder contains verbs."
 msgstr "このフォルダには動詞が入ります。"
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, fuzzy, kde-format
 #| msgid "Conjugation"
 msgid "Conjunction"
@@ -1872,23 +1872,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "現在の語彙コレクションを他のユーザと共有する"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "%1 のプロパティ"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "語彙コレクションを開く"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "練習モードで開く(&M)"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1898,25 +1898,25 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, fuzzy, kde-format
 #| msgid "Writing file \"%1\" resulted in an error: %2"
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "ファイル <filename>%1</filename> の書き込みエラー: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 #| msgid "Last Opened Collections"
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "最後に開いたコレクション"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1927,12 +1927,12 @@
 "\n"
 "終了する前に保存しますか？\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "ダウンロードした語彙コレクションを開く"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1941,37 +1941,37 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "ファイル ‘%1’ の書き込みエラー: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, fuzzy, kde-format
 #| msgid "Save File"
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "ファイルを保存"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "名前を付けて語彙を保存"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>ファイル ‘%1’ は既に存在します。<br/>上書きしますか？</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "‘%1’ を保存中"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "パブリックドメイン"
@@ -1979,36 +1979,36 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "言語"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "第二言語"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "レッスン 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 #| msgid "Downloads new vocabulary collections"
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "新しい語彙コレクションをダウンロードします"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Could not start practice"
 msgid "Could not create temporary directory \"%1\""
 msgstr "練習を開始することができませんでした"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Downloads new vocabulary collections"
 msgid "Could not save vocabulary collection \"%1\""
@@ -3334,6 +3334,13 @@
 msgid "Visible columns in the main editor window."
 msgstr ""
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4440,20 +4447,20 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit"
 msgstr "このレッスンからすべての習得レベル情報を削除します"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "このレッスンからすべての習得レベル情報を削除します"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4493,17 +4500,17 @@
 msgid "Not practiced"
 msgstr "未出題(&P):"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Mixed Letters"
 msgid "Mixed Directions"
@@ -4597,7 +4604,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/kk/parley.po parley-18.04.1/po/kk/parley.po
--- parley-17.12.3/po/kk/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/kk/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -6,7 +6,7 @@
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2013-11-16 05:27+0600\n"
 "Last-Translator: Sairan Kikkarin <sairan@computer.org>\n"
 "Language-Team: Kazakh <kde-i18n-doc@kde.org>\n"
@@ -357,7 +357,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Осы сөздік жиынын өңдеу үшін ашу"
@@ -505,14 +505,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Сын есім"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Үстеу"
@@ -627,21 +627,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Аталық тек"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Аналық тек"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Орта тек"
@@ -950,13 +950,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Етістік"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Зат есім"
@@ -1396,7 +1396,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Бұл сөз табының қапшығында етістіктер орналасады."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Жалғаулық"
@@ -1829,23 +1829,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Істегі сөздік жиынын ортақ қылып басқалармен бөлісу"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "%1 қасиеттері"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Сөздік жиынын ашу"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Жаттығу &күйінде ашу"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1855,24 +1855,24 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, fuzzy, kde-format
 #| msgid "Writing file \"%1\" resulted in an error: %2"
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "\"%1\" файлын жазғанда қате орын алды: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Жиынды ашу"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1883,12 +1883,12 @@
 "\n"
 "Шығу алдында сақтамақсыз ба?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Жүктеп алынған сөздік жиынын ашу"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1897,23 +1897,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "\"%1\" файлын жазғанда қате орын алды: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Файлды сақтау"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Сөздікті былай сақтау"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
@@ -1921,14 +1921,14 @@
 "<qt>Былай, <p><b>%1</b></p> деп аталған файл бар екен. Үстінен жаза берейік "
 "пе?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "%1 дегенді сақтау"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Қоғамдық пайдада"
@@ -1936,35 +1936,35 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Тілдер"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Екінші тіл"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "1-сабақ"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "\"%1\" сөздік жиыны ашылмады"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Could not write to file \"%1\""
 msgid "Could not create temporary directory \"%1\""
 msgstr "\"%1\" файлына жазуы болмады"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Could not open vocabulary collection \"%1\""
 msgid "Could not save vocabulary collection \"%1\""
@@ -3293,6 +3293,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Редактордың негізгі терезесінде көрсетілетін бағандары."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4422,20 +4429,20 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit"
 msgstr "Сабақтағы деңгейлерін кетіру"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Сабақтағы деңгейлерін кетіру"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4475,17 +4482,17 @@
 msgid "Not practiced"
 msgstr "&Өтпегені:"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Mixed Letters"
 msgid "Mixed Directions"
@@ -4579,7 +4586,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/km/parley.po parley-18.04.1/po/km/parley.po
--- parley-17.12.3/po/km/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/km/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -9,7 +9,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2012-07-23 15:02+0700\n"
 "Last-Translator: Sok Sophea <sophea@khmeros.info>\n"
 "Language-Team: Khmer <>\n"
@@ -381,7 +381,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, fuzzy, kde-format
 #| msgid "Save the active vocabulary document with a different name"
 msgid "Open this vocabulary collection in the editor"
@@ -533,14 +533,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "គុណនាម"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "គុណកិរិយា"
@@ -661,21 +661,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "ប្រុស"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "ស្រី"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "អភេទ"
@@ -1000,13 +1000,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "កិរិយាសព្ទ"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "នាម"
@@ -1445,7 +1445,7 @@
 msgid "This word type folder contains verbs."
 msgstr ""
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, fuzzy, kde-format
 #| msgid "Conjugation"
 msgid "Conjunction"
@@ -1889,24 +1889,24 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "រក្សា​ទុក"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "លក្ខណៈសម្បត្តិ​សម្រាប់ %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, fuzzy, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "បើក​ឯកសារ​វាក្យសព្ទ"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, fuzzy, kde-format
 #| msgid "Article"
 msgid "Open in practice &mode"
 msgstr "ពាក្យ​នាំ​មុខ​នាម​"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1916,23 +1916,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "បើក​ឯកសារ​វាក្យសព្ទ"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1943,13 +1943,13 @@
 "\n"
 "រក្សា​ទុក​ឯកសារ​មុន​ពេល​បិទ ?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, fuzzy, kde-format
 #| msgid "Open Downloaded Vocabularies"
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "បើក​វាក្យសព្ទ​ដែលបាន​ទាញ​យក"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1958,23 +1958,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, fuzzy, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "រក្សា​ទុក"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "រក្សា​វាក្យសព្ទ​ទុក​ជា​"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, fuzzy, kde-format
 #| msgid ""
 #| "<qt>The file<br><b>%1</b><br>already exists. Do you want to overwrite it?"
@@ -1983,7 +1983,7 @@
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>ឯកសារ<br><b>%1</b><br>មាន​រួច​ហើយ ។ តើ​អ្នក​ចង់​សរសេរ​ជាន់​លើ​វា​ឬ ?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, fuzzy, kde-format
 #| msgid "Saving %1"
 msgctxt "@info:status saving a file"
@@ -1991,7 +1991,7 @@
 msgstr "កំពុង​រក្សា​ទុក %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, fuzzy, kde-format
 msgid "Public Domain"
 msgstr "សាធារណៈ"
@@ -1999,38 +1999,38 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "ភាសា​"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, fuzzy, kde-format
 #| msgid "&Append Language"
 msgid "A Second Language"
 msgstr "បន្ថែម​ភាសា​នៅ​ខាង​ចុង​"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, fuzzy, kde-format
 #| msgid "Lesson"
 msgid "Lesson 1"
 msgstr "មេរៀន"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 #| msgid "Downloads new vocabularies"
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "ទាញ​យក​វាក្យសព្ទ​ថ្មី"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Starting special query..."
 msgid "Could not create temporary directory \"%1\""
 msgstr "កំពុង​ចាប់ផ្ដើម​សំណួរ​ពិសេស..."
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Downloads new vocabularies"
 msgid "Could not save vocabulary collection \"%1\""
@@ -3390,6 +3390,13 @@
 msgid "Visible columns in the main editor window."
 msgstr ""
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, fuzzy, kde-format
 #| msgid ";"
@@ -4524,18 +4531,18 @@
 msgid "Alt+2"
 msgstr "ជំនួស+២"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "យក​ធាតុ​ដែល​មាន​មាតិកា​ដូច​គ្នា​ចេញ​ពី​វាក្យសព្ទ"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "យក​ធាតុ​ដែល​មាន​មាតិកា​ដូច​គ្នា​ចេញ​ពី​វាក្យសព្ទ"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "យក​ធាតុ​ដែល​មាន​មាតិកា​ដូច​គ្នា​ចេញ​ពី​វាក្យសព្ទ"
@@ -4574,17 +4581,17 @@
 msgid "Not practiced"
 msgstr "មិន​ទាន់​បាន​សួរ​នៅ​ឡើយ​"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Article"
 msgid "Mixed Directions"
@@ -4678,7 +4685,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/lt/parley.po parley-18.04.1/po/lt/parley.po
--- parley-17.12.3/po/lt/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/lt/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -8,7 +8,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2015-12-29 21:41+0200\n"
 "Last-Translator: Mindaugas Baranauskas <opensuse.lietuviu.kalba@gmail.com>\n"
 "Language-Team: lt <kde-i18n-lt@kde.org>\n"
@@ -374,7 +374,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, fuzzy, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Dabartinį žodyno rinkinį įrašo į kitokio pavadinimo failą"
@@ -522,14 +522,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Būdvardis"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Prieveiksmis"
@@ -645,21 +645,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Vyriškoji"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Moteriškoji"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Bevardė"
@@ -968,13 +968,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Veiksmažodis"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Daiktavardis"
@@ -1429,7 +1429,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Šiame žodžio tipui skirtame aplanke laikomi veiksmažodžiai."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, fuzzy, kde-format
 #| msgid "Conjugation"
 msgid "Conjunction"
@@ -1878,23 +1878,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Dabartinį žodyno rinkinį įrašo į kitokio pavadinimo failą"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "%1 savybės"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Atverti žodyno rinkinį"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Atverti pratybų &veiksenoje"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1904,25 +1904,25 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, fuzzy, kde-format
 #| msgid "Writing file \"%1\" resulted in an error: %2"
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Berašant į failą „%1“ įvyko klaida: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 #| msgid "Last Opened Collections"
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Paskutinįsyk atverti rinkiniai"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1933,12 +1933,12 @@
 "\n"
 "Ar įrašyti jį į failą prieš išeinant?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Atverti atsisiųstą žodyno rinkinį"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1947,37 +1947,37 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Berašant į failą „%1“ įvyko klaida: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, fuzzy, kde-format
 #| msgid "Save File"
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Įrašyti failą"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Įrašyti žodyną kaip"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Failas<p><b>%1</b></p>jau yra. Ar norite jį perrašyti?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "%1 įrašomas"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Viešo naudojimo"
@@ -1985,36 +1985,36 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Kalbos"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Antroji kalba"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Pamoka 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 #| msgid "Downloads new vocabulary collections"
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Atsiunčia naujus žodyno rinkinius"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Could not start practice"
 msgid "Could not create temporary directory \"%1\""
 msgstr "Nepavyko pradėti pratybų"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Downloads new vocabulary collections"
 msgid "Could not save vocabulary collection \"%1\""
@@ -3356,6 +3356,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Pagrindiniame rengyklės lange rodomi stulpeliai."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4510,20 +4517,20 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit"
 msgstr "Pašalinti visus šios pamokos įvertinimus"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Pašalinti visus šios pamokos įvertinimus"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4563,17 +4570,17 @@
 msgid "Not practiced"
 msgstr "Dar neįgudęs:"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Mixed Letters"
 msgid "Mixed Directions"
@@ -4668,7 +4675,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/lv/parley.po parley-18.04.1/po/lv/parley.po
--- parley-17.12.3/po/lv/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/lv/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -8,7 +8,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2012-07-27 23:11+0300\n"
 "Last-Translator: Einars Sprugis <einars8@gmail.com>\n"
 "Language-Team: Latvian <locale@laka.lv>\n"
@@ -373,7 +373,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Atvērt šo vārdnīcas kolekciju redaktorā"
@@ -521,14 +521,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Īpašības vārds"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Apstākļa vārds"
@@ -643,21 +643,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Vīriešu"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Sieviešu"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neitrāls"
@@ -966,13 +966,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Darbības vārds"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Lietvārds"
@@ -1417,7 +1417,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Šī vārdu tipa mape satur darbības vārdus."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Saiklis"
@@ -1854,23 +1854,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Kopīgot pašreizējo vārdnīcu kolekciju ar citiem lietotājiem"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "%1 īpašības"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Atvērt vārdnīcu kolekciju"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Atvērt vingrināšanās režī&mā"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1880,25 +1880,25 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, fuzzy, kde-format
 #| msgid "Writing file \"%1\" resulted in an error: %2"
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Faila \"%1\" rakstīšanas rezultātā radās kļūda: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 #| msgid "Open Collection"
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Atvērt kolekciju"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1909,12 +1909,12 @@
 "\n"
 "Saglabāt failu pirms iziešanas?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Atvērt lejupielādēto vārdnīcu kolekciju"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1923,37 +1923,37 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Faila \"%1\" rakstīšanas rezultātā radās kļūda: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, fuzzy, kde-format
 #| msgid "Save File"
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Saglabāt failu"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Saglabā vārdnīcu kā"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Fails<p><b>%1</b></p>jau pastāv. Vai vēlaties to pārrakstīt?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Saglabā %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Publiskais domēns"
@@ -1961,36 +1961,36 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Valodas"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Otrā valoda"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "1. nodarbība"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 #| msgid "Could not read collection from \"%1\""
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Neizdevās nolasīt kolekciju no \"%1\""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Could not read collection from \"%1\""
 msgid "Could not create temporary directory \"%1\""
 msgstr "Neizdevās nolasīt kolekciju no \"%1\""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Could not read collection from \"%1\""
 msgid "Could not save vocabulary collection \"%1\""
@@ -3354,6 +3354,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Redzamās kolonnas galvenajā redaktora logā."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4498,20 +4505,20 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit"
 msgstr "Izņemt visas pakāpes no šīs nodarbības"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Izņemt visas pakāpes no šīs nodarbības"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4553,17 +4560,17 @@
 msgid "Not practiced"
 msgstr "Nav &vingrināts:"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Mixed Letters"
 msgid "Mixed Directions"
@@ -4657,7 +4664,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/mr/parley.po parley-18.04.1/po/mr/parley.po
--- parley-17.12.3/po/mr/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/mr/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -6,7 +6,7 @@
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2013-03-05 17:01+0530\n"
 "Last-Translator: Chetan Khona <chetan@kompkin.com>\n"
 "Language-Team: Marathi <kde-i18n-doc@kde.org>\n"
@@ -350,7 +350,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr ""
@@ -492,14 +492,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr ""
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr ""
@@ -614,21 +614,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr ""
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr ""
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr ""
@@ -928,13 +928,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr ""
@@ -1353,7 +1353,7 @@
 msgid "This word type folder contains verbs."
 msgstr ""
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr ""
@@ -1776,23 +1776,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr ""
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr ""
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr ""
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1802,23 +1802,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr ""
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1826,12 +1826,12 @@
 "Save file before exit?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr ""
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1840,36 +1840,36 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr ""
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr ""
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr ""
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, fuzzy, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "साठवित आहे..."
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr ""
@@ -1877,34 +1877,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "भाषा"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr ""
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr ""
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr ""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr ""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr ""
@@ -3181,6 +3181,13 @@
 msgid "Visible columns in the main editor window."
 msgstr ""
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4248,18 +4255,18 @@
 msgid "Alt+2"
 msgstr "Alt"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr ""
@@ -4296,17 +4303,17 @@
 msgid "Not practiced"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr ""
@@ -4393,7 +4400,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/nb/parley.po parley-18.04.1/po/nb/parley.po
--- parley-17.12.3/po/nb/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/nb/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -8,7 +8,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2013-11-26 10:47+0100\n"
 "Last-Translator: Bjørn Steensrud <bjornst@skogkatt.homelinux.org>\n"
 "Language-Team: Norwegian Bokmål <i18n-nb@lister.ping.uio.no>\n"
@@ -356,7 +356,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Åpne denne ordlistesamlinga i redigeringen"
@@ -498,14 +498,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adjektiv"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Adverb"
@@ -620,21 +620,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Maskulinum"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Femininum"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Nøytrum"
@@ -934,13 +934,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verb"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Substantiv"
@@ -1360,7 +1360,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Denne ordklasse-mappa inneholder verb."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Konjunksjon"
@@ -1789,23 +1789,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Del den gjeldende ordlistesamlinga med andre brukere"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Egenskaper for %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Åpne ordlistesamling"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Åpne i  øvelses&modus"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1815,23 +1815,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Åpne samling"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1842,12 +1842,12 @@
 "\n"
 "Lagre fil før avslutting?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Åpne nedlastet ordlistesamling"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1856,36 +1856,36 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Det oppsto en feil ved lagring av fila «%1»: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Lagre fil"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Lagre ordlista som"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Fila <p><b>%1</b></p> finnes fra før. Vil du overskrive den?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Lagrer %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "I det fri"
@@ -1893,34 +1893,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Språk"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Nok et språk"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Øvelse 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Klarte ikke å åpne ordlistesamlinga «%1»"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr ""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr ""
@@ -3216,6 +3216,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Synlige kolonner i hovedredigeringsvinduet."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4315,18 +4322,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr ""
@@ -4363,17 +4370,17 @@
 msgid "Not practiced"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr ""
@@ -4456,7 +4463,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/nds/parley.po parley-18.04.1/po/nds/parley.po
--- parley-17.12.3/po/nds/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/nds/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -6,7 +6,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2014-09-18 16:30+0200\n"
 "Last-Translator: Sönke Dibbern <s_dibbern@web.de>\n"
 "Language-Team: Low Saxon <kde-i18n-nds@kde.org>\n"
@@ -360,7 +360,7 @@
 msgid "Fully learned"
 msgstr "Lehrt"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Disse Vokavelsett-Sammeln mit en Editor opmaken"
@@ -501,14 +501,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Egenschapwoort"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Ümstandwoort"
@@ -623,21 +623,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Maskuliensch"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Feminiensch"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neutraal"
@@ -942,13 +942,13 @@
 msgstr "Stopen to&rüchsetten"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Tietwoort"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Naamwoort"
@@ -1370,7 +1370,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Disse Woortoort-Orner bargt Tietwöör."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Binnwoort"
@@ -1801,23 +1801,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Aktuell Vokavelsett-Sammeln för anner Brukers freegeven"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Egenschappen vun %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Vokavelsett-Sammeln opmaken"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "In Ööv&bedrief opmaken"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1832,23 +1832,23 @@
 "\n"
 "Wullt Du dat Slott övernehmen?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Slott övernehmen"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Bi't Opmaken vun de Sammeln „%1“ hett dat en Fehler geven: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Sammeln opmaken"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1859,12 +1859,12 @@
 "\n"
 "Datei ehr't Utmaken sekern?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Daallaadt Vokavelsett-Sammeln opmaken"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1877,23 +1877,23 @@
 "\n"
 "Wullt Du dat Slott övernehmen?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Bi't Schrieven vun de Datei „%1“ hett dat en Fehler geven: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Datei sekern"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Vokavelsett sekern as"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
@@ -1902,14 +1902,14 @@
 "överschrieven?</qt>"
 
 # unreviewed-context
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "„%1“ warrt sekert"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Meenfree"
@@ -1917,35 +1917,35 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Spraken"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "En tweet Spraak"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lex 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Vokavelsett-Sammeln „%1“ lett sik nich opmaken."
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Could not write to file \"%1\""
 msgid "Could not create temporary directory \"%1\""
 msgstr "Datei „%1“ lett sik nich schrieven."
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Vokavelsett-Sammeln „%1“ lett sik nich opmaken."
@@ -3275,6 +3275,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Sichtbor Striepen binnen dat Hööft-Editorfinster"
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 # unreviewed-context
 #: src/settings/generaloptions.cpp:60
 #, kde-format
@@ -4400,18 +4407,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Stopen ut dissen Lex wegmaken"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Stopen ut dissen Lex un all Ünnerlexen wegmaken"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Stopen ut dissen Lex un all Ünnerlexen wegmaken"
@@ -4448,17 +4455,17 @@
 msgid "Not practiced"
 msgstr "Nich öövt"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Begäng to Lehren"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Lehren to Begäng"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Beed Richten"
@@ -4548,7 +4555,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/nl/parley.po parley-18.04.1/po/nl/parley.po
--- parley-17.12.3/po/nl/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/nl/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -5,16 +5,16 @@
 # Rinse de Vries <rinsedevries@kde.nl>, 2002, 2003, 2004, 2005, 2007, 2008.
 # Bram Schoenmakers <bramschoenmakers@kde.nl>, 2006.
 # Kristof Bal <kristof.bal@gmail.com>, 2008, 2009.
-# Freek de Kruijf <freekdekruijf@kde.nl>, 2008, 2009, 2010, 2012, 2013, 2014, 2016.
+# Freek de Kruijf <freekdekruijf@kde.nl>, 2008, 2009, 2010, 2012, 2013, 2014, 2016, 2018.
 # Antoon Tolboom <atolboo@gmail.com>, 2008.
 # Jaap Woldringh <jjhwoldringh@kde.nl>, 2008, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017.
 msgid ""
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
-"PO-Revision-Date: 2017-07-29 10:54+0100\n"
-"Last-Translator: Jaap Woldringh <jjhwoldringh@kde.nl>\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
+"PO-Revision-Date: 2018-01-26 13:44+0100\n"
+"Last-Translator: Freek de Kruijf <freekdekruijf@kde.nl>\n"
 "Language-Team: Dutch <kde-i18n-nl@kde.org>\n"
 "Language: nl\n"
 "MIME-Version: 1.0\n"
@@ -362,7 +362,7 @@
 msgid "Fully learned"
 msgstr "Alles geleerd"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Deze woordenlijstverzameling openen in de bewerker."
@@ -505,14 +505,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Bijvoeglijk naamwoord"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Bijwoord"
@@ -627,21 +627,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Mannelijk"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Vrouwelijk"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Onzijdig"
@@ -946,13 +946,13 @@
 msgstr "&Beoordelingen opnieuw"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Werkwoord"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Zelfstandig naamwoord"
@@ -1376,7 +1376,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Deze map met woordsoorten bevat werkwoorden."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Voegwoord"
@@ -1809,23 +1809,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Huidige woordenlijstverzameling met anderen delen"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Eigenschappen voor %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Woordenlijstverzameling openen"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Openen in oefen&modus"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1839,23 +1839,23 @@
 "eventuele wijzigingen dan verloren.\n"
 "Wilt u de blokkering overnemen?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Blokkering overnemen"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Verzameling \"%1\" openen geeft fout: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Verzameling openen"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1866,12 +1866,12 @@
 "\n"
 "Bestand voor het afsluiten opslaan?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Opgehaalde woordenlijstverzameling openen"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1884,37 +1884,37 @@
 "eventuele wijzigingen dan verloren.\n"
 "Wilt u de blokkering overnemen?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Schrijven bestand \"%1\"geeft fout: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Bestand opslaan"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Woordenlijst opslaan als"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr ""
 "<qt>Het bestand <p><b>%1</b></p>bestaat al. Wilt u het overschrijven?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "%1 wordt opgeslagen"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Publiek domein"
@@ -1922,34 +1922,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Talen"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Een tweede taal"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Les 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Kon woordenlijstverzameling \"%1\" niet openen"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Kon tijdelijke map \"%1\" niet aanmaken"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Kon woordenlijstverzameling \"%1\" niet opslaan"
@@ -3265,6 +3265,14 @@
 msgid "Visible columns in the main editor window."
 msgstr "Zichtbare kolommen in het hoofdvenster voor bewerken."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+"Ingeklapte items in boomstructuur van weergavevenster voor statistieken."
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4396,18 +4404,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Beoordelingen van deze eenheid wissen"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Beoordelingen wissen van deze eenheid, en alle subeenheden"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Beoordelingen wissen van deze eenheid, en alle subeenheden"
@@ -4444,17 +4452,17 @@
 msgid "Not practiced"
 msgstr "Niet geoefend"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Bekend naar te leren"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Te leren naar bekend"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Gemengde aanwijzingen"
@@ -4537,7 +4545,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Voor elke oefenmodus onthouden"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/nn/parley.po parley-18.04.1/po/nn/parley.po
--- parley-17.12.3/po/nn/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/nn/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -7,7 +7,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2011-07-06 19:25+0200\n"
 "Last-Translator: Karl Ove Hufthammer <karl@huftis.org>\n"
 "Language-Team: Norwegian Nynorsk <i18n-nn@lister.ping.uio.no>\n"
@@ -356,7 +356,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr ""
@@ -497,14 +497,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adjektiv"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Adverb"
@@ -619,21 +619,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Hankjønn"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Hokjønn"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Inkjekjønn"
@@ -933,13 +933,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verb"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Verb"
@@ -1359,7 +1359,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Denne ordtypemappa inneheld verb."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr ""
@@ -1784,23 +1784,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr ""
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Eigenskapar for %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Opna ordsamling"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Opna i ø&vingsmodus"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1810,23 +1810,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr ""
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1837,12 +1837,12 @@
 "\n"
 "Vil du lagra det før du avsluttar?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Opna nedlasta ordsamling"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1851,36 +1851,36 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Feil ved skriving til fila «%1»: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr ""
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Lagra orddokumentet som"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Fila<p><b>%1</b></p>finst allereie. Vil du skriva over henne?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Lagrar %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Public Domain"
@@ -1888,7 +1888,7 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
@@ -1896,27 +1896,27 @@
 msgstr "Språk"
 
 # TRN: Translation is correct!
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Eit anna språk"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Øving 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr ""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr ""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr ""
@@ -3196,6 +3196,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Synlege kolonnar i hovudvindauget."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4292,18 +4299,18 @@
 msgid "Alt+2"
 msgstr "Alt + 2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr ""
@@ -4340,17 +4347,17 @@
 msgid "Not practiced"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr ""
@@ -4433,7 +4440,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/pa/parley.po parley-18.04.1/po/pa/parley.po
--- parley-17.12.3/po/pa/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/pa/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -7,7 +7,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2012-05-23 07:03+0530\n"
 "Last-Translator: A S Alam <aalam@users.sf.net>\n"
 "Language-Team: Punjabi/Panjabi <punjabi-users@lists.sf.net>\n"
@@ -381,7 +381,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr ""
@@ -536,7 +536,7 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, fuzzy, kde-format
 #| msgid "Acti&ve"
 msgid "Adjective"
@@ -544,7 +544,7 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr ""
@@ -662,7 +662,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, fuzzy, kde-format
 #| msgid "&male"
 msgid "Masculine"
@@ -670,7 +670,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, fuzzy, kde-format
 #| msgid "Finished"
 msgid "Feminine"
@@ -678,7 +678,7 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, fuzzy, kde-format
 #| msgid "Ne&xt"
 msgid "Neuter"
@@ -1003,13 +1003,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "ਵਰਬ"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "ਨਾਮ"
@@ -1454,7 +1454,7 @@
 msgid "This word type folder contains verbs."
 msgstr ""
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, fuzzy, kde-format
 #| msgid "Count:"
 msgid "Conjunction"
@@ -1885,24 +1885,24 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr ""
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "%1 ਲਈ ਵਿਸ਼ੇਸ਼ਤਾ"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr ""
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, fuzzy, kde-format
 #| msgid "Article"
 msgid "Open in practice &mode"
 msgstr "ਲੇਖ"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1912,24 +1912,24 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 #| msgid "&Delete"
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "ਹਟਾਓ(&D)"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1937,12 +1937,12 @@
 "Save file before exit?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr ""
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1951,23 +1951,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr ""
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr ""
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, fuzzy, kde-format
 #| msgid ""
 #| "<qt>The file<br><b>%1</b><br>already exists. Do you want to overwrite it?"
@@ -1976,7 +1976,7 @@
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>ਫਾਇਲ<br><b>%1</b><br>ਪਹਿਲਾਂ ਹੀ ਮੌਜੂਦ ਹੈ। ਕੀ ਤੁਸੀਂ ਉੱਤੇ ਲਿਖਣਾ ਚਾਹੁੰਦੇ ਹੋ?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, fuzzy, kde-format
 #| msgid "Saving %1"
 msgctxt "@info:status saving a file"
@@ -1984,7 +1984,7 @@
 msgstr "%1 ਸੰਭਾਲੀ ਜਾ ਰਹੀ ਹੈ"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr ""
@@ -1992,37 +1992,37 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "ਭਾਸ਼ਾਵਾਂ"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, fuzzy, kde-format
 #| msgid "Second language: "
 msgid "A Second Language"
 msgstr "ਦੂਜੀ ਭਾਸ਼ਾ: "
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, fuzzy, kde-format
 #| msgid "Loading %1"
 msgid "Lesson 1"
 msgstr "%1 ਲੋਡ ਕੀਤਾ ਜਾ ਰਿਹਾ ਹੈ"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr ""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "&Statistics..."
 msgid "Could not create temporary directory \"%1\""
 msgstr "ਅੰਕੜੇ(&S)..."
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "&Statistics..."
 msgid "Could not save vocabulary collection \"%1\""
@@ -3395,6 +3395,13 @@
 msgid "Visible columns in the main editor window."
 msgstr ""
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4510,20 +4517,20 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Edit language properties in current document"
 msgid "Remove confidence levels from this unit"
 msgstr "ਮੌਜੂਦਾ ਦਸਤਾਵੇਜ਼ ਵਿੱਚ ਭਾਸ਼ਾ ਵਿਸ਼ੇਸ਼ਤਾ ਸੋਧ"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Edit language properties in current document"
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "ਮੌਜੂਦਾ ਦਸਤਾਵੇਜ਼ ਵਿੱਚ ਭਾਸ਼ਾ ਵਿਸ਼ੇਸ਼ਤਾ ਸੋਧ"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Edit language properties in current document"
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4565,17 +4572,17 @@
 msgid "Not practiced"
 msgstr "ਲੇਖ"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Article"
 msgid "Mixed Directions"
@@ -4670,7 +4677,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/pl/parley.po parley-18.04.1/po/pl/parley.po
--- parley-17.12.3/po/pl/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/pl/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -2,7 +2,7 @@
 # translation of parley3.po to
 # translation of parley.po to
 # translation of kvoctrain.po to
-# Version: $Revision: 1499882 $
+# Version: $Revision: 1512533 $
 # Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
 #
 # Michal Rudolf <mrudolf@kdewebdev.org>, 2003, 2004.
@@ -15,13 +15,13 @@
 # Maciej Wikło <maciej.wiklo@wp.pl>, 2008, 2009.
 # Franciszek Janowski <nobange@poczta.onet.pl>, 2009.
 # Michał Lachowski <michal@lachowski.info>, 2010.
-# Łukasz Wojniłowicz <lukasz.wojnilowicz@gmail.com>, 2011, 2012, 2013, 2014, 2015, 2016, 2017.
+# Łukasz Wojniłowicz <lukasz.wojnilowicz@gmail.com>, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018.
 msgid ""
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
-"PO-Revision-Date: 2017-09-02 20:27+0100\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
+"PO-Revision-Date: 2018-01-28 06:59+0100\n"
 "Last-Translator: Łukasz Wojniłowicz <lukasz.wojnilowicz@gmail.com>\n"
 "Language-Team: Polish <kde-i18n-doc@kde.org>\n"
 "Language: pl\n"
@@ -371,7 +371,7 @@
 msgid "Fully learned"
 msgstr "W pełni nauczony"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Otwórz ten zbiór słownictwa w edytorze"
@@ -514,14 +514,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Przymiotnik"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Przysłówek"
@@ -636,21 +636,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Męski"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Żeński"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Nijaki"
@@ -956,13 +956,13 @@
 msgstr "Wyze&ruj poziomy ufności"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Czasownik"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Rzeczownik"
@@ -1386,7 +1386,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Ten katalog z rodzajami słów zawiera czasowniki."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Spójnik"
@@ -1819,23 +1819,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Udostępnij bieżący zbiór słownictwa innym użytkownikom"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Właściwości %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Otwórz słownik"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Otwórz w &trybie ćwiczenia"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1849,23 +1849,23 @@
 "\n"
 "Czy chcesz znieść blokadę?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Znieś blokadę"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Otwieranie zbioru \"%1\" zakończyło się błędem: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Otwórz zbiór"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1876,12 +1876,12 @@
 "\n"
 "Zapisać plik przed wyjściem z programu?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Otwórz pobrany słownik"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1894,36 +1894,36 @@
 "\n"
 "Czy chcesz znieść blokadę?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Zapisywanie pliku \"%1\" zakończyło się błędem: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Zapisz plik"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Zapisz słownictwo jako"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Plik<p><b>%1</b></p>już istnieje. Czy chcesz go nadpisać?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Zapisywanie %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Domena publiczna"
@@ -1931,34 +1931,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Języki"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Drugi język"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lekcja 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Nie można otworzyć zbioru słownictwa \"%1\""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Nie można było utworzyć tymczasowego katalogu \"%1\""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Nie można zapisać zbioru słownictwa \"%1\""
@@ -3287,6 +3287,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Widoczne kolumny w głównym oknie edycji."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr "Zwinięte elementy widoku drzewa dla okna widoku statystyki."
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4405,18 +4412,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Usuń oceny z tego rozdziału"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Usuń oceny z tego rozdziału i wszystkich podległych"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Usuń oceny z tego rozdziału i wszystkich podległych"
@@ -4453,17 +4460,17 @@
 msgid "Not practiced"
 msgstr "Nieprzećwiczony"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Wiedza dla uczenia"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Uczenie dla wiedzy"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Wymieszane kierunki"
@@ -4546,7 +4553,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Zapamiętaj dla każdego trybu ćwiczeń"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/pt/parley.po parley-18.04.1/po/pt/parley.po
--- parley-17.12.3/po/pt/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/pt/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -2,8 +2,8 @@
 msgstr ""
 "Project-Id-Version: kvoctrain\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
-"PO-Revision-Date: 2017-07-28 09:31+0100\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
+"PO-Revision-Date: 2018-01-26 10:48+0000\n"
 "Last-Translator: José Nuno Pires <zepires@gmail.com>\n"
 "Language-Team: pt <kde-i18n-pt@kde.org>\n"
 "Language: pt\n"
@@ -378,7 +378,7 @@
 msgid "Fully learned"
 msgstr "Aprendida por completo"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Abrir esta colecção do vocabulário no editor"
@@ -519,14 +519,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adjectivo"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Advérbio"
@@ -641,21 +641,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Masculino"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Feminino"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neutro"
@@ -960,13 +960,13 @@
 msgstr "&Repor os Níveis de Confiança"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verbo"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Substantivo"
@@ -1389,7 +1389,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Esta pasta de tipos de palavras contém verbos."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Conjunção"
@@ -1821,23 +1821,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Partilhar a colecção do vocabulário activa com os outros utilizadores"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Propriedades de %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Abrir a Colecção do Vocabulário"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Abrir no &modo de exercício"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1852,23 +1852,23 @@
 "\n"
 "Deseja capturar o bloqueio?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Capturar o Bloqueio"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "A abertura da colecção \"%1\" resultou num erro: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Abrir a Colecção"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1879,12 +1879,12 @@
 "\n"
 "Deseja gravar o ficheiro antes de sair?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Abrir as Colecções de Vocabulários Transferidos"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1898,36 +1898,36 @@
 "\n"
 "Deseja capturar o bloqueio?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "A gravação do ficheiro \"%1\" resultou num erro: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Gravar o Ficheiro"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Gravar o Vocabulário Como"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>O ficheiro<p><b>%1</b></p>já existe. Deseja sobrepô-lo?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "A gravar o %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Domínio Público"
@@ -1935,34 +1935,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Línguas"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Uma Segunda Língua"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lição 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Não foi possível abrir a colecção de vocabulários \"%1\""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Não foi possível criar a pasta temporária \"%1\""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Não foi possível gravar a colecção de vocabulários \"%1\""
@@ -3284,6 +3284,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "As colunas visíveis na janela do editor principal."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr "Foram fechados os itens da árvore da janela de estatísticas."
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4413,19 +4420,19 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Remover os níveis de confiança desta unidade"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr ""
 "Remover os níveis de confiança desta unidade e de todas as sub-unidades"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr ""
@@ -4463,17 +4470,17 @@
 msgid "Not practiced"
 msgstr "Não exercitada"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Conhecida para Aprendida"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Aprendida para Conhecida"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Direcções Mistas"
@@ -4556,7 +4563,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Recordar para Cada Modo de Exercício"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/pt_BR/parley.po parley-18.04.1/po/pt_BR/parley.po
--- parley-17.12.3/po/pt_BR/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/pt_BR/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -10,7 +10,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2017-10-25 11:34-0300\n"
 "Last-Translator: Luiz Fernando Ranghetti <elchevive@opensuse.org>\n"
 "Language-Team: Portuguese <kde-i18n-pt_BR@kde.org>\n"
@@ -361,7 +361,7 @@
 msgid "Fully learned"
 msgstr "Aprendida por completo"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Abrir esta coleção de vocabulários no editor"
@@ -503,14 +503,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adjetivo"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Advérbio"
@@ -625,21 +625,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Masculino"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Feminino"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neutro"
@@ -943,13 +943,13 @@
 msgstr "&Restaurar os níveis de confiança"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verbo"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Substantivo"
@@ -1373,7 +1373,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Esta pasta de classe de palavras contém verbos."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Conjunção"
@@ -1804,23 +1804,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Compartilhar a coleção de vocabulários atual com outros usuários"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Propriedades de %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Abrir coleção de vocabulários"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Abrir no &modo de exercício"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1835,23 +1835,23 @@
 "\n"
 "Deseja capturar o bloqueio?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Capturar o bloqueio"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "A abertura da coleção \"%1\" resultou em um erro: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Abrir coleção"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1862,12 +1862,12 @@
 "\n"
 "Deseja salvar o arquivo antes de sair?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Abrir coleção de vocabulários baixados"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1881,36 +1881,36 @@
 "\n"
 "Deseja capturar o bloqueio?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "A gravação do arquivo \"%1\" resultou em um erro: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Salvar arquivo"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Salvar vocabulário como"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>O arquivo<p><b>%1</b></p>já existe. Deseja sobrescrevê-lo?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Salvando %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Domínio público"
@@ -1918,34 +1918,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Idiomas"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Um segundo idioma"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lição 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Não foi possível abrir a coleção de vocabulários \"%1\""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Não foi possível criar a pasta temporária \"%1\""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Não foi possível salvar a coleção de vocabulários \"%1\""
@@ -3269,6 +3269,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "As colunas visíveis na janela principal do editor."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4399,18 +4406,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Remove os níveis de confiança desta unidade"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Remove os níveis de confiança desta unidade e de todas as subunidades"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Remove o nível de confiança desta unidade e de todas as subunidades"
@@ -4447,17 +4454,17 @@
 msgid "Not practiced"
 msgstr "Não exercitado"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Conhecido para Aprendido"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Aprendido para Conhecido"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Direções mistas"
@@ -4540,7 +4547,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Lembrar para cada modo de exercício"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/ro/parley.po parley-18.04.1/po/ro/parley.po
--- parley-17.12.3/po/ro/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/ro/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -10,7 +10,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2014-10-03 11:34+0300\n"
 "Last-Translator: Sergiu Bivol <sergiu@ase.md>\n"
 "Language-Team: Romanian <kde-i18n-ro@kde.org>\n"
@@ -374,7 +374,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Deschide această colecție de vocabulare în editor"
@@ -521,14 +521,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adjectiv"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Adverb"
@@ -644,21 +644,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Masculin"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Feminin"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neutru"
@@ -967,13 +967,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verb"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Substantiv"
@@ -1420,7 +1420,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Acesta dosar de tipuri de cuvinte conține verbe."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, fuzzy, kde-format
 #| msgid "Conjugation"
 msgid "Conjunction"
@@ -1869,23 +1869,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Partajează colecția curentă de vocabulare cu alți utilizatori"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Proprietăți pentru %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Deschidere colecția de vocabulare"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Deschide în &modul de exersare"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1895,25 +1895,25 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, fuzzy, kde-format
 #| msgid "Writing file \"%1\" resulted in an error: %2"
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Scrierea fișierului ”%1” a rezultat într-o eroare: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, fuzzy, kde-format
 #| msgid "Last Opened Collections"
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Colecțiile deschise ultima dată"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1924,12 +1924,12 @@
 "\n"
 "Îl salvați înainte de închidere?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Deschide colecția de vocabulare descărcate"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1938,38 +1938,38 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Scrierea fișierului ”%1” a rezultat într-o eroare: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, fuzzy, kde-format
 #| msgid "Save File"
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Salvează fișierul"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Salvează vocabularul ca"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr ""
 "<qt>Fișierul<p><b>%1</b></p>există deja. Vreți să îl suprascrieți?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Se salvează %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Domeniu public"
@@ -1977,36 +1977,36 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Limbi"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "A doua limbă"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lecția 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, fuzzy, kde-format
 #| msgid "Downloads new vocabulary collections"
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Descărcare colecții de vocabulare noi..."
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Could not start practice"
 msgid "Could not create temporary directory \"%1\""
 msgstr "Nu s-a putut începe exersarea"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Downloads new vocabulary collections"
 msgid "Could not save vocabulary collection \"%1\""
@@ -3393,6 +3393,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Coloanele vizibile în fereastre editorului principal."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4548,20 +4555,20 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit"
 msgstr "Eliminați toate notele de la această lecție"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Eliminați toate notele de la această lecție"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4601,17 +4608,17 @@
 msgid "Not practiced"
 msgstr "Ne&exersat:"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Mixed Letters"
 msgid "Mixed Directions"
@@ -4705,7 +4712,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/ru/parley.po parley-18.04.1/po/ru/parley.po
--- parley-17.12.3/po/ru/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/ru/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -13,7 +13,7 @@
 msgstr ""
 "Project-Id-Version: kvoctrain\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2015-03-21 11:28+0300\n"
 "Last-Translator: Alexander Potashev <aspotashev@gmail.com>\n"
 "Language-Team: Russian <kde-russian@lists.kde.ru>\n"
@@ -377,7 +377,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Открыть словарь в редакторе "
@@ -526,14 +526,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Прилагательное"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Наречие"
@@ -648,21 +648,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Мужской"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Женский"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Средний"
@@ -974,13 +974,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Глагол"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Существительное"
@@ -1428,7 +1428,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Слова из этой группы являются глаголами."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Союз"
@@ -1871,23 +1871,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Поделиться данным набором словарей с другими пользователями"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Свойства %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Открытие набора словарей"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Открыть в режиме &тренировки"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1897,24 +1897,24 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, fuzzy, kde-format
 #| msgid "Writing file \"%1\" resulted in an error: %2"
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "При записи в файл %1 произошла ошибка: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Открытие набора словарей"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1925,12 +1925,12 @@
 "\n"
 "Сохранить изменения перед выходом?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Открыть загруженный набор словарей"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1939,36 +1939,36 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "При записи в файл %1 произошла ошибка: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Сохранение файла"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Сохранить словарь как"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Файл с именем <p><b>%1</b></p> уже существует. Заменить его?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Сохранение %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Общественное достояние"
@@ -1976,35 +1976,35 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Языки"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Второй язык"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Урок 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Не удалось открыть набор словарей «%1»"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, fuzzy, kde-format
 #| msgid "Could not write to file \"%1\""
 msgid "Could not create temporary directory \"%1\""
 msgstr "Запись в файл «%1» не удалась"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, fuzzy, kde-format
 #| msgid "Could not open vocabulary collection \"%1\""
 msgid "Could not save vocabulary collection \"%1\""
@@ -3351,6 +3351,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Видимые столбцы в основном окне редактора."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4495,20 +4502,20 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit"
 msgstr "Сбросить все уровни знания этого урока"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Сбросить все уровни знания этого урока"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, fuzzy, kde-format
 #| msgid "Remove all grades from this lesson"
 msgid "Remove confidence level from this unit and all sub-units"
@@ -4551,19 +4558,19 @@
 msgid "Not practiced"
 msgstr "&Без тренировки:"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, fuzzy, kde-format
 #| msgid "&Learning"
 msgid "Known to Learning"
 msgstr "&Обучение"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, fuzzy, kde-format
 #| msgid "&Learning"
 msgid "Learning to Known"
 msgstr "&Обучение"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, fuzzy, kde-format
 #| msgid "Mixed Letters"
 msgid "Mixed Directions"
@@ -4656,7 +4663,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/sk/parley.po parley-18.04.1/po/sk/parley.po
--- parley-17.12.3/po/sk/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/sk/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -11,7 +11,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2017-08-04 22:18+0100\n"
 "Last-Translator: Roman Paholik <wizzardsk@gmail.com>\n"
 "Language-Team: Slovak <kde-sk@linux.sk>\n"
@@ -359,7 +359,7 @@
 msgid "Fully learned"
 msgstr "Plne precvičené"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Otvoriť túto kolekciu slovnej zásoby v editore"
@@ -501,14 +501,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Prídavné meno"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Príslovka"
@@ -623,21 +623,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Mužský"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Ženský"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Stredný rod"
@@ -940,13 +940,13 @@
 msgstr "Vynulovať úrovne dôvery"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Sloveso"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Podstatné meno"
@@ -1370,7 +1370,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Tento priečinok slovného druhu obsahuje slovesá."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Konjunkcia"
@@ -1799,23 +1799,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Zdielať aktuálnu kolekciu slovnej zásoby s inými používateľmi"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Vlastnosti pre %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Otvoriť kolekciu slovnej zásoby"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Otvoriť v reži&me precvičovania"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1829,23 +1829,23 @@
 "\n"
 "Chcete prevziať zámok?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Prevziať zámok"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Otvorenie kolekcie \"%1\" skončilo chybou: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Otvoriť kolekciu"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1856,12 +1856,12 @@
 "\n"
 "Uložiť súbor pred ukončením?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Otvoriť stiahnutú kolekciu slovnej zásoby"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1874,36 +1874,36 @@
 "\n"
 "Chcete prevziať zámok?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Zapisovanie súboru  \"%1\" skončilo chybou:  %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Uložiť súbor"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Uložiť slovník ako"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Súbor<p><b>%1</b></p>už existuje. Chcete ho prepísať?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Ukladám %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Public Domain"
@@ -1911,34 +1911,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Jazyky"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Druhý jazyk"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lekcia 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Nepodarilo sa otvoriť kolekciu slovnej zásoby \"%1\""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Nepodarilo sa vytvoriť dočasný adresár \"%1\""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Nepodarilo sa uložiť kolekciu slovnej zásoby \"%1\""
@@ -3264,6 +3264,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Viditeľné stĺpce v hlavnom okne editora."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4384,18 +4391,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Odstrániť stupne z tejto lekcie"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Odstrániť stupeň z tejto lekcie a všetkých podlekcií"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Odstrániť stupne z tejto lekcie a všetkých podlekcií"
@@ -4432,17 +4439,17 @@
 msgid "Not practiced"
 msgstr "Neprecvičené"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Známy na výučbu"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Výučba na známy"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Pomiešané smery"
@@ -4525,7 +4532,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Pamätať si pre každý cvičiaci režim"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/sl/parley.po parley-18.04.1/po/sl/parley.po
--- parley-17.12.3/po/sl/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/sl/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -1,7 +1,7 @@
 # translation of kvoctrain.po to Slovenian
 # Translation of kvoctrain.po to Slovenian
 # Copyright (C) 2002, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
-# $Id: parley.po 1509038 2018-01-20 10:03:23Z mernik $
+# $Id: parley.po 1512533 2018-03-19 03:57:34Z scripty $
 # $Source$
 #
 # Andrej Vernekar <andrej.vernekar@moj.net>, 2002.
@@ -12,7 +12,7 @@
 msgstr ""
 "Project-Id-Version: kvoctrain\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2018-01-20 10:39+0100\n"
 "Last-Translator: Andrej Mernik <andrejm@ubuntu.si>\n"
 "Language-Team: Slovenian <lugos-slo@lugos.si>\n"
@@ -364,7 +364,7 @@
 msgid "Fully learned"
 msgstr "Naučeno v celoti"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Odpri to zbirko besedišč v urejevalniku"
@@ -507,14 +507,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Pridevnik"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Prislov"
@@ -629,21 +629,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Moški spol"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Ženski spol"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Srednji"
@@ -946,13 +946,13 @@
 msgstr "Ponas&tavi stopnje zaupanja"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Glagol"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Samostalnik"
@@ -1378,7 +1378,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Ta besedna vrsta vsebuje glagole."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Veznik"
@@ -1814,23 +1814,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Delite trenutno zbirko besedišč z drugimi uporabniki"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Lastnosti za %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Odpri zbirko besedišč"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Odpri v &načinu vadbe"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1845,23 +1845,23 @@
 "\n"
 "Ali želite prevzeti zaklep?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Prevzemi zaklep"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Odpiranje zbirke \"%1\" je vrnilo napako: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Odpri zbirko"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1872,12 +1872,12 @@
 "\n"
 "Ali želite shraniti datoteko pred izhodom?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Odpri prejeto zbirko besedišč"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1891,36 +1891,36 @@
 "\n"
 "Ali želite prevzeti zaklep?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Zapisovanje datoteke \"%1\" je vrnilo napako: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Shrani datoteko"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Shrani besedišče kot"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Datoteka<p><b>%1</b></p>že obstaja. Ali jo želite prepisati?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Shranjevanje %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Javna domena"
@@ -1928,34 +1928,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Jeziki"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Drugi jezik"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lekcija 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Ni bilo mogoče odpreti zbirke besedišč \"%1\""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Ni bilo mogoče ustvariti začasne mape »%1«"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Ni bilo mogoče shraniti zbirke besedišč \"%1\""
@@ -3279,6 +3279,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Vidni stolpci v glavnem oknu urejevalnika. "
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4387,18 +4394,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Odstrani stopnje zaupanja iz te enote"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Odstrani stopnje zaupanja iz te enote in vseh podrejenih enot"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Odstrani stopnjo zaupanja iz te enote in vseh podrejenih enot"
@@ -4435,17 +4442,17 @@
 msgid "Not practiced"
 msgstr "Še niste vadili"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Znano v učeno"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Učeno v znano"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Mešana smer"
@@ -4528,7 +4535,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Zapomni si za vsak način vadbe"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/sv/parley.po parley-18.04.1/po/sv/parley.po
--- parley-17.12.3/po/sv/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/sv/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -1,13 +1,13 @@
 # translation of parley.po to Swedish
 # Copyright (C).
 #
-# Stefan Asserhäll <stefan.asserhall@bredband.net>, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017.
+# Stefan Asserhäll <stefan.asserhall@bredband.net>, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018.
 msgid ""
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
-"PO-Revision-Date: 2017-07-28 10:19+0100\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
+"PO-Revision-Date: 2018-01-27 10:53+0100\n"
 "Last-Translator: Stefan Asserhäll <stefan.asserhall@bredband.net>\n"
 "Language-Team: Swedish <kde-i18n-doc@kde.org>\n"
 "Language: sv\n"
@@ -351,7 +351,7 @@
 msgid "Fully learned"
 msgstr "Helt inlärt"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Öppna den här ordförrådssamlingen i editorn"
@@ -492,14 +492,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Adjektiv"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Adverb"
@@ -614,21 +614,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Maskulinum"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Femininum"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Neutrum"
@@ -931,13 +931,13 @@
 msgstr "&Nollställ konfidensnivåer"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Verb"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Substantiv"
@@ -1359,7 +1359,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Den här ordklassmappen innehåller verb."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Böjningsform"
@@ -1791,23 +1791,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Dela den nuvarande ordförrådssamlingen med andra användare"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Egenskaper för %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Öppna ordförrådssamling"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Öppna i övnings&läge"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1822,23 +1822,23 @@
 "\n"
 "Vill du ta över låset?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Ta över lås"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Ett fel uppstod när samlingen \"%1\" skulle öppnas: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Öppna samling"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1849,12 +1849,12 @@
 "\n"
 "Spara filen innan avslut?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Öppna nerladdad ordförrådssamling"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1868,36 +1868,36 @@
 "\n"
 "Vill du ta över låset?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Ett fel uppstod vid skrivning av filen \"%1\": %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Spara fil"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Spara ordförråd som"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Filen<p><b>%1</b></p>finns redan. Vill du skriva över den?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Sparar %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Allmänt tillgänglig"
@@ -1905,34 +1905,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Språk"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Ett andra språk"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Lektion 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Kunde inte öppna ordförrådssamling \"%1\""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Kunde inte skapa tillfällig katalog \"%1\""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Kunde inte spara ordförrådssamling \"%1\""
@@ -3242,6 +3242,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Synliga kolumner i huvudeditorns fönster."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr "Statistikvisningsfönstrets hopdragna trädvyobjekt."
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4351,18 +4358,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Ta bort konfidensnivåer från enheten"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Ta bort konfidensnivåer från enheten och alla delenheter"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Ta bort konfidensnivå från enheten och alla delenheter"
@@ -4399,17 +4406,17 @@
 msgid "Not practiced"
 msgstr "Inte övat"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Känt till övat"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Övat till känt"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Blandade riktningar"
@@ -4492,7 +4499,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Kom ihåg för varje övningsmetod"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/tr/parley.po parley-18.04.1/po/tr/parley.po
--- parley-17.12.3/po/tr/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/tr/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -16,7 +16,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2017-10-24 08:16+0000\n"
 "Last-Translator: İşbaran <isbaran@gmail.com>\n"
 "Language-Team: Turkish <kde-l10n-tr@kde.org>\n"
@@ -368,7 +368,7 @@
 msgid "Fully learned"
 msgstr "Tamamen öğrenildi"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Bu sözcük arşivini düzenleyicide aç"
@@ -511,14 +511,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Sıfat"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Zarf"
@@ -633,21 +633,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Erkek"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Dişi"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Nötr"
@@ -951,13 +951,13 @@
 msgstr "Güven Düzeylerini &Sıfırla"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Fiil"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "İsim"
@@ -1380,7 +1380,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Bu sözcük türü dizini fiilleri içerir."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Bağlaç"
@@ -1810,23 +1810,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Mevcut sözcük arşivini diğer kullanıcılarla paylaş."
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "%1 özellikleri"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Sözcük Arşivi Aç"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Çalışma &kipi ile aç"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1841,23 +1841,23 @@
 "\n"
 "Kilidi kaldırmak istiyor musunuz?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Kilidi Kaldır"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "\"%1\" koleksiyonunu kaldırmak bir hataya neden oldu: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Arşiv Aç"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1868,12 +1868,12 @@
 "\n"
 "Çıkmadan önce kaydedilsin mi?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "İndirilen Sözcük Arşivini Aç"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1886,36 +1886,36 @@
 "\n"
 "Kilidi kaldırmak istiyor musunuz?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "\"%1\" dosyasına yazmak bir hataya neden oldu: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Dosyayı Kaydet"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Sözcük Hazinesini Farklı Kaydet"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt><p><b>%1</b></p> zaten var. Üzerine yazmak istiyor musunuz?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "%1 Kaydediliyor"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Public Domain"
@@ -1923,34 +1923,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Diller"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "İkinci Bir Dil"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Ders 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "\"%1\" kelime koleksiyonu açılamadı"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "\"%1\" geçici dizini oluşturulamadı"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "\"%1\" kelime koleksiyonu kaydedilemedi"
@@ -3269,6 +3269,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Ana düzenleyici penceresindeki görünebilir sütunlar."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4382,18 +4389,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Bu birimden güven düzeylerini kaldır"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Bu birimden ve tüm alt birimlerinden güven düzeylerini kaldır"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Bu birimden ve tüm alt birimlerinden güven düzeyini kaldır"
@@ -4430,17 +4437,17 @@
 msgid "Not practiced"
 msgstr "Çalışılmadı"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "Bilinenden Öğrenilene"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "Öğrenilenden Bilinene"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Karışık Yönler"
@@ -4523,7 +4530,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Her Alıştırma Kipi için Hatırla"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/ug/parley.po parley-18.04.1/po/ug/parley.po
--- parley-17.12.3/po/ug/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/ug/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -7,7 +7,7 @@
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
 "PO-Revision-Date: 2013-09-08 07:05+0900\n"
 "Last-Translator: Gheyret Kenji <gheyret@gmail.com>\n"
 "Language-Team: Uyghur Computer Science Association <UKIJ@yahoogroups.com>\n"
@@ -351,7 +351,7 @@
 msgid "Fully learned"
 msgstr ""
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr ""
@@ -494,14 +494,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "سۈپەت"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "رەۋىش"
@@ -616,21 +616,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr ""
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr ""
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr ""
@@ -930,13 +930,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "پېئىل"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "ئىسىم"
@@ -1354,7 +1354,7 @@
 msgid "This word type folder contains verbs."
 msgstr ""
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "باغلىغۇچى"
@@ -1776,23 +1776,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr ""
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "‹%1› نىڭ خاسلىقى"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr ""
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1802,23 +1802,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr ""
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1826,12 +1826,12 @@
 "Save file before exit?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr ""
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1840,36 +1840,36 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr ""
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "ھۆججەت ساقلاش"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr ""
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr ""
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "%1 نى ساقلاۋاتىدۇ"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr ""
@@ -1877,34 +1877,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "تىللار"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr ""
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr ""
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr ""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr ""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr ""
@@ -3183,6 +3183,13 @@
 msgid "Visible columns in the main editor window."
 msgstr ""
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr ""
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4252,18 +4259,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr ""
@@ -4300,17 +4307,17 @@
 msgid "Not practiced"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr ""
@@ -4399,7 +4406,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/uk/parley.po parley-18.04.1/po/uk/parley.po
--- parley-17.12.3/po/uk/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/uk/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -1,16 +1,16 @@
 # Translation of parley.po to Ukrainian
-# Copyright (C) 2005-2017 This_file_is_part_of_KDE
+# Copyright (C) 2005-2018 This_file_is_part_of_KDE
 # This file is distributed under the license LGPL version 2.1 or
 # version 3 or later versions approved by the membership of KDE e.V.
 #
 # Ivan Petrouchtchak <fr.ivan@ukrainian-orthodox.org>, 2005, 2006, 2007.
-# Yuri Chornoivan <yurchor@ukr.net>, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017.
+# Yuri Chornoivan <yurchor@ukr.net>, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018.
 msgid ""
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
-"PO-Revision-Date: 2017-07-28 09:00+0200\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
+"PO-Revision-Date: 2018-01-26 10:31+0200\n"
 "Last-Translator: Yuri Chornoivan <yurchor@ukr.net>\n"
 "Language-Team: Ukrainian <kde-i18n-uk@kde.org>\n"
 "Language: uk\n"
@@ -363,7 +363,7 @@
 msgid "Fully learned"
 msgstr "Повністю вивчено"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "Відкрити цю збірку словників у вікні редактора"
@@ -505,14 +505,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "Прикметник"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "Прислівник"
@@ -627,21 +627,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "Чоловічий"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "Жіночий"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "Середній"
@@ -944,13 +944,13 @@
 msgstr "С&кинути довірчі рівні"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "Дієслово"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "Іменник"
@@ -1376,7 +1376,7 @@
 msgid "This word type folder contains verbs."
 msgstr "Ця тека частини мови містить дієслова."
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "Сполучник"
@@ -1811,23 +1811,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "Поділитися поточною збіркою словників з іншими користувачами"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "Властивості %1"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "Відкрити збірку словників"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "Відкривати у режимі вп&рави"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1842,23 +1842,23 @@
 "\n"
 "Хочете зняти блокування?\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "Зняти блокування"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "Спроба відкрити збірку «%1» завершилася помилкою: %2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "Відкриття збірки"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1869,12 +1869,12 @@
 "\n"
 "Зберегти файл перед виходом?\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "Відкрити отриману збірку словників"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1888,36 +1888,36 @@
 "\n"
 "Хочете зняти блокування?\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "Спроба запису файла «%1» завершилася помилкою: %2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "Збереження файла"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "Зберегти словник як"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>Файл<p><b>%1</b></p>вже існує. Хочете його перезаписати?</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "Збереження %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "Власність спільноти"
@@ -1925,34 +1925,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "Мови"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "Друга мова"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "Урок 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "Не вдалося відкрити збірку словників «%1»"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "Не вдалося створити тимчасову теку «%1»"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "Не вдалося зберегти збірку словників «%1»"
@@ -3297,6 +3297,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "Видимі стовпчики у головному вікні редактора."
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr "Згорнуті пункти у ієрархічному списку вікна перегляду статистики."
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4433,18 +4440,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "Вилучити усі довірчі рівні з цього модуля"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "Вилучити усі довірчі з поточного уроку та усіх підлеглих модулів"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "Вилучити усі довірчі з цього модуля та усіх підлеглих модулів"
@@ -4481,17 +4488,17 @@
 msgid "Not practiced"
 msgstr "Не пройдено"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "З відомої тією, що вивчається"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "З тої, що вивчається, відомою"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "Суміш варіантів"
@@ -4574,7 +4581,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "Запам’ятовувати для кожного режиму вправи"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/zh_CN/parley.po parley-18.04.1/po/zh_CN/parley.po
--- parley-17.12.3/po/zh_CN/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/zh_CN/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -12,8 +12,8 @@
 msgstr ""
 "Project-Id-Version: kdeorg\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
-"PO-Revision-Date: 2018-02-28 02:29-0500\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
+"PO-Revision-Date: 2018-04-26 06:12-0400\n"
 "Last-Translator: guoyunhebrave <guoyunhebrave@gmail.com>\n"
 "Language-Team: Chinese Simplified\n"
 "Language: zh_CN\n"
@@ -259,12 +259,12 @@
 #: src/collection/vocabularymodel.cpp:293
 #, kde-format
 msgid "Pronunciation (%1)"
-msgstr ""
+msgstr "发音 (%1)"
 
 #: src/collection/vocabularymodel.cpp:295
 #, kde-format
 msgid "Word Type (%1)"
-msgstr ""
+msgstr "词性 (%1)"
 
 #: src/collection/vocabularymodel.cpp:295
 #, kde-format
@@ -280,12 +280,12 @@
 #: src/collection/vocabularymodel.cpp:297
 #, kde-format
 msgid "Synonym (%1)"
-msgstr ""
+msgstr "同义词 (%1)"
 
 #: src/collection/vocabularymodel.cpp:299
 #, kde-format
 msgid "Antonym (%1)"
-msgstr ""
+msgstr "反义词 (%1)"
 
 #: src/collection/vocabularymodel.cpp:299
 #, kde-format
@@ -301,7 +301,7 @@
 #: src/collection/vocabularymodel.cpp:301
 #, kde-format
 msgid "Example (%1)"
-msgstr ""
+msgstr "示例 (%1)"
 
 #. i18n: ectx: property (text), widget (QLabel, label_6)
 #: src/collection/vocabularymodel.cpp:303 src/editor/summarywordwidget.ui:103
@@ -312,7 +312,7 @@
 #: src/collection/vocabularymodel.cpp:303
 #, kde-format
 msgid "Comment (%1)"
-msgstr ""
+msgstr "备注 (%1)"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/collection/vocabularymodel.cpp:305 src/editor/summarywordwidget.ui:87
@@ -323,7 +323,7 @@
 #: src/collection/vocabularymodel.cpp:305
 #, kde-format
 msgid "Paraphrase (%1)"
-msgstr ""
+msgstr "释义 (%1)"
 
 #: src/collection/vocabularymodel.cpp:324
 #, kde-format
@@ -356,7 +356,7 @@
 msgid "Fully learned"
 msgstr "完全学会"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "在编辑器中打开此词汇表"
@@ -497,14 +497,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "形容词"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "副词"
@@ -619,21 +619,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "阳性"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "阴性"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "中性"
@@ -936,13 +936,13 @@
 msgstr ""
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "动词"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "名词"
@@ -1358,7 +1358,7 @@
 msgid "This word type folder contains verbs."
 msgstr "词性文件夹含有动词。"
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "连接词"
@@ -1781,23 +1781,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "分享当前的词汇表"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "%1 的属性"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "打开词汇表"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "在练习模式中打开(&M)"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1807,23 +1807,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr ""
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "打开词汇表“%1”时发生错误：%2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "打开词汇表"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1834,12 +1834,12 @@
 "\n"
 "退出前要保存文件吗？\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "打开下载的词汇表"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1848,23 +1848,23 @@
 "Do you want to take over the lock?\n"
 msgstr ""
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "写入“%1”时发生错误：%2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "保存文件"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "词汇表另存为"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
@@ -1872,14 +1872,14 @@
 "文件已经存在。\n"
 "您要覆盖“%1”吗？"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "保存 %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "公共领域"
@@ -1887,34 +1887,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "语言"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "第二语言"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "课程 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "无法打开词汇表“%1%”"
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr ""
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "无法保持词汇表“%1%”"
@@ -3189,6 +3189,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "编辑器主窗口中的可见栏。"
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr "折叠统计视图的折叠树图项。"
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4258,18 +4265,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr ""
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr ""
@@ -4306,17 +4313,17 @@
 msgid "Not practiced"
 msgstr "尚未练习"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr ""
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "混合方向"
@@ -4399,7 +4406,7 @@
 msgid "Remember for each Practice Mode"
 msgstr ""
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/po/zh_TW/parley.po parley-18.04.1/po/zh_TW/parley.po
--- parley-17.12.3/po/zh_TW/parley.po	2018-03-06 00:13:51.000000000 +0000
+++ parley-18.04.1/po/zh_TW/parley.po	2018-05-08 00:10:53.000000000 +0000
@@ -8,14 +8,15 @@
 # Franklin Weng <franklin@mail.everfocus.com.tw>, 2008, 2010, 2012.
 # Franklin Weng <franklin@goodhorse.idv.tw>, 2011, 2012, 2013, 2014, 2015.
 # Jeff Huang <s8321414@gmail.com>, 2016.
+# pan93412 <pan93412@gmail.com>, 2018.
 msgid ""
 msgstr ""
 "Project-Id-Version: parley\n"
 "Report-Msgid-Bugs-To: http://bugs.kde.org\n"
-"POT-Creation-Date: 2017-10-12 03:21+0200\n"
-"PO-Revision-Date: 2016-11-16 21:43+0800\n"
-"Last-Translator: Jeff Huang <s8321414@gmail.com>\n"
-"Language-Team: Chinese <kde-i18n-doc@kde.org>\n"
+"POT-Creation-Date: 2018-03-19 03:23+0100\n"
+"PO-Revision-Date: 2018-04-24 21:05+0800\n"
+"Last-Translator: pan93412 <pan93412@gmail.com>\n"
+"Language-Team: Chinese <zh-l10n@linux.org.tw>\n"
 "Language: zh_TW\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -254,16 +255,14 @@
 msgstr "發音"
 
 #: src/collection/vocabularymodel.cpp:293
-#, fuzzy, kde-format
-#| msgid "Pronunciation"
+#, kde-format
 msgid "Pronunciation (%1)"
-msgstr "發音"
+msgstr "發音 (%1)"
 
 #: src/collection/vocabularymodel.cpp:295
-#, fuzzy, kde-format
-#| msgid "Word Type"
+#, kde-format
 msgid "Word Type (%1)"
-msgstr "單字型態"
+msgstr "單字型態 (%1)"
 
 #: src/collection/vocabularymodel.cpp:295
 #, kde-format
@@ -277,17 +276,14 @@
 msgstr "同義詞"
 
 #: src/collection/vocabularymodel.cpp:297
-#, fuzzy, kde-format
-#| msgid "Synonym: "
+#, kde-format
 msgid "Synonym (%1)"
-msgstr "同義詞："
+msgstr "同義詞： (%1)"
 
 #: src/collection/vocabularymodel.cpp:299
-#, fuzzy, kde-format
-#| msgctxt "Title for a list of antonyms (opposites) for a word"
-#| msgid "Antonyms of %1:"
+#, kde-format
 msgid "Antonym (%1)"
-msgstr "%1 的反義詞："
+msgstr "反義詞 (%1)"
 
 #: src/collection/vocabularymodel.cpp:299
 #, kde-format
@@ -301,10 +297,9 @@
 msgstr "範例"
 
 #: src/collection/vocabularymodel.cpp:301
-#, fuzzy, kde-format
-#| msgid "Example"
+#, kde-format
 msgid "Example (%1)"
-msgstr "範例"
+msgstr "範例 (%1)"
 
 #. i18n: ectx: property (text), widget (QLabel, label_6)
 #: src/collection/vocabularymodel.cpp:303 src/editor/summarywordwidget.ui:103
@@ -313,10 +308,9 @@
 msgstr "註解"
 
 #: src/collection/vocabularymodel.cpp:303
-#, fuzzy, kde-format
-#| msgid "Comment"
+#, kde-format
 msgid "Comment (%1)"
-msgstr "註解"
+msgstr "註解 (%1)"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/collection/vocabularymodel.cpp:305 src/editor/summarywordwidget.ui:87
@@ -325,10 +319,9 @@
 msgstr "解釋"
 
 #: src/collection/vocabularymodel.cpp:305
-#, fuzzy, kde-format
-#| msgid "Paraphrase"
+#, kde-format
 msgid "Paraphrase (%1)"
-msgstr "解釋"
+msgstr "解釋 (%1)"
 
 #: src/collection/vocabularymodel.cpp:324
 #, kde-format
@@ -361,7 +354,7 @@
 msgid "Fully learned"
 msgstr "已完全學習"
 
-#: src/dashboard/buttondelegate.cpp:35
+#: src/dashboard/buttondelegate.cpp:36
 #, kde-format
 msgid "Open this vocabulary collection in the editor"
 msgstr "在編輯器中開啟此字彙收藏"
@@ -502,14 +495,14 @@
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdjectiveButton)
 #: src/editor/comparisonwidget.ui:116 src/editor/inflectionwidget.cpp:51
-#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:505
+#: src/editor/wordtypeview.cpp:105 src/parleydocument.cpp:504
 #, kde-format
 msgid "Adjective"
 msgstr "形容詞"
 
 #. i18n: ectx: property (text), widget (QPushButton, makeAdverbButton)
 #: src/editor/comparisonwidget.ui:123 src/editor/wordtypeview.cpp:113
-#: src/parleydocument.cpp:509
+#: src/parleydocument.cpp:508
 #, kde-format
 msgid "Adverb"
 msgstr "副詞"
@@ -624,21 +617,21 @@
 
 #. i18n: ectx: property (text), widget (QLabel, label_3)
 #: src/editor/declensionwidget.cpp:168 src/editor/declensionwidget.ui:185
-#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:491
+#: src/editor/inflectionwidget.cpp:125 src/parleydocument.cpp:490
 #, kde-format
 msgid "Masculine"
 msgstr "雄性"
 
 #. i18n: ectx: property (text), widget (QLabel, label_4)
 #: src/editor/declensionwidget.cpp:169 src/editor/declensionwidget.ui:271
-#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:494
+#: src/editor/inflectionwidget.cpp:127 src/parleydocument.cpp:493
 #, kde-format
 msgid "Feminine"
 msgstr "雌性"
 
 #. i18n: ectx: property (text), widget (QLabel, label_5)
 #: src/editor/declensionwidget.cpp:170 src/editor/declensionwidget.ui:357
-#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:497
+#: src/editor/inflectionwidget.cpp:126 src/parleydocument.cpp:496
 #, kde-format
 msgid "Neuter"
 msgstr "中性"
@@ -941,13 +934,13 @@
 msgstr "重置自信等級"
 
 #: src/editor/inflectionwidget.cpp:41 src/editor/wordtypeview.cpp:122
-#: src/parleydocument.cpp:501
+#: src/parleydocument.cpp:500
 #, kde-format
 msgid "Verb"
 msgstr "動詞"
 
 #: src/editor/inflectionwidget.cpp:46 src/editor/wordtypeview.cpp:73
-#: src/parleydocument.cpp:487
+#: src/parleydocument.cpp:486
 #, kde-format
 msgid "Noun"
 msgstr "名詞"
@@ -1363,7 +1356,7 @@
 msgid "This word type folder contains verbs."
 msgstr "此單字型態資料夾包含了動詞。"
 
-#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:513
+#: src/editor/wordtypeview.cpp:130 src/parleydocument.cpp:512
 #, kde-format
 msgid "Conjunction"
 msgstr "連接詞"
@@ -1786,23 +1779,23 @@
 msgid "Share the current vocabulary collection with other users"
 msgstr "將目前的字彙收藏與其他使用者分享"
 
-#: src/parleydocument.cpp:136 src/parleydocument.cpp:595
+#: src/parleydocument.cpp:135 src/parleydocument.cpp:594
 #, kde-format
 msgctxt "@title:window document properties"
 msgid "Properties for %1"
 msgstr "%1 的屬性"
 
-#: src/parleydocument.cpp:177
+#: src/parleydocument.cpp:176
 #, kde-format
 msgid "Open Vocabulary Collection"
 msgstr "開啟字彙收藏"
 
-#: src/parleydocument.cpp:178
+#: src/parleydocument.cpp:177
 #, kde-format
 msgid "Open in practice &mode"
 msgstr "以練習模式開啟(&M)"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid ""
 "The vocabulary collection is locked by another process.  You can open the "
@@ -1816,23 +1809,23 @@
 "\n"
 "您要移除鎖定嗎？\n"
 
-#: src/parleydocument.cpp:226
+#: src/parleydocument.cpp:225
 #, kde-format
 msgid "Take Over Lock"
 msgstr "移除鎖定"
 
-#: src/parleydocument.cpp:255
+#: src/parleydocument.cpp:254
 #, kde-format
 msgid "Opening collection \"%1\" resulted in an error: %2"
 msgstr "開啟收藏 %1 時發生錯誤：%2"
 
-#: src/parleydocument.cpp:256
+#: src/parleydocument.cpp:255
 #, kde-format
 msgctxt "@title:window"
 msgid "Open Collection"
 msgstr "開啟收藏"
 
-#: src/parleydocument.cpp:286
+#: src/parleydocument.cpp:285
 #, kde-format
 msgid ""
 "Vocabulary is modified.\n"
@@ -1843,12 +1836,12 @@
 "\n"
 "退出前要儲存檔案嗎？\n"
 
-#: src/parleydocument.cpp:319
+#: src/parleydocument.cpp:318
 #, kde-format
 msgid "Open Downloaded Vocabulary Collection"
 msgstr "開啟下載好的字彙收藏"
 
-#: src/parleydocument.cpp:359 src/parleydocument.cpp:443
+#: src/parleydocument.cpp:358 src/parleydocument.cpp:442
 #, kde-format
 msgid ""
 "File \"%1\" is locked by another process.  You can save to the file if you "
@@ -1861,36 +1854,36 @@
 "\n"
 "您要儲存檔案嗎？\n"
 
-#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
+#: src/parleydocument.cpp:385 src/parleydocument.cpp:475
 #, kde-format
 msgid "Writing file \"%1\" resulted in an error: %2"
 msgstr "寫入檔案 %1 時發生錯誤：%2"
 
-#: src/parleydocument.cpp:387 src/parleydocument.cpp:477
+#: src/parleydocument.cpp:386 src/parleydocument.cpp:476
 #, kde-format
 msgctxt "@title:window"
 msgid "Save File"
 msgstr "儲存檔案"
 
-#: src/parleydocument.cpp:404
+#: src/parleydocument.cpp:403
 #, kde-format
 msgid "Save Vocabulary As"
 msgstr "字彙另存為"
 
-#: src/parleydocument.cpp:416
+#: src/parleydocument.cpp:415
 #, kde-format
 msgid ""
 "<qt>The file<p><b>%1</b></p>already exists. Do you want to overwrite it?</qt>"
 msgstr "<qt>檔案<br/><b>%1</b><br/>已存在。您要覆寫它嗎？</qt>"
 
-#: src/parleydocument.cpp:422
+#: src/parleydocument.cpp:421
 #, kde-format
 msgctxt "@info:status saving a file"
 msgid "Saving %1"
 msgstr "正在儲存 %1"
 
 #. i18n: ectx: property (text), item, widget (KComboBox, licenseComboBox)
-#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:221
+#: src/parleydocument.cpp:525 src/settings/documentproperties.ui:221
 #, kde-format
 msgid "Public Domain"
 msgstr "公開領域"
@@ -1898,34 +1891,34 @@
 #. i18n: ectx: property (text), item, widget (KComboBox, categoryComboBox)
 #. i18n: ectx: property (title), widget (QGroupBox, languageGroupBox)
 #. i18n: ectx: property (title), widget (QGroupBox, groupBoxLanguages)
-#: src/parleydocument.cpp:527 src/settings/documentproperties.ui:167
+#: src/parleydocument.cpp:526 src/settings/documentproperties.ui:167
 #: src/settings/documentproperties.ui:237
 #: src/statistics/statisticsmainwindow.ui:23
 #, kde-format
 msgid "Languages"
 msgstr "語言"
 
-#: src/parleydocument.cpp:535
+#: src/parleydocument.cpp:534
 #, kde-format
 msgid "A Second Language"
 msgstr "第二語言"
 
-#: src/parleydocument.cpp:538
+#: src/parleydocument.cpp:537
 #, kde-format
 msgid "Lesson 1"
 msgstr "課程 1"
 
-#: src/parleydocument.cpp:578 src/parleydocument.cpp:635
+#: src/parleydocument.cpp:577 src/parleydocument.cpp:634
 #, kde-format
 msgid "Could not open vocabulary collection \"%1\""
 msgstr "無法開啟字彙收藏 \"%1\""
 
-#: src/parleydocument.cpp:622
+#: src/parleydocument.cpp:621
 #, kde-format
 msgid "Could not create temporary directory \"%1\""
 msgstr "無法寫入暫存檔案 %1"
 
-#: src/parleydocument.cpp:629 src/parleydocument.cpp:643
+#: src/parleydocument.cpp:628 src/parleydocument.cpp:642
 #, kde-format
 msgid "Could not save vocabulary collection \"%1\""
 msgstr "無法儲存字彙收藏 \"%1\""
@@ -3208,6 +3201,13 @@
 msgid "Visible columns in the main editor window."
 msgstr "主編輯視窗裡的可見欄位。"
 
+#. i18n: ectx: label, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#. i18n: ectx: whatsthis, entry (CollapsedStatisticsViewItems), group (Document $(fileurl))
+#: src/settings/documentsettings.kcfg:20 src/settings/documentsettings.kcfg:21
+#, kde-format
+msgid "Collapsed tree view items of statistics view window."
+msgstr "統計顯示視窗的折疊樹狀顯示項目"
+
 #: src/settings/generaloptions.cpp:60
 #, kde-format
 msgctxt "CSV separator"
@@ -4279,18 +4279,18 @@
 msgid "Alt+2"
 msgstr "Alt+2"
 
-#: src/statistics/lessonstatisticsview.cpp:86
-#: src/statistics/lessonstatisticsview.cpp:88
+#: src/statistics/lessonstatisticsview.cpp:94
+#: src/statistics/lessonstatisticsview.cpp:96
 #, kde-format
 msgid "Remove confidence levels from this unit"
 msgstr "從此單元中移除自信等級"
 
-#: src/statistics/lessonstatisticsview.cpp:96
+#: src/statistics/lessonstatisticsview.cpp:104
 #, kde-format
 msgid "Remove confidence levels from this unit and all sub-units"
 msgstr "從此單元與所有子單元中移除自信等級"
 
-#: src/statistics/lessonstatisticsview.cpp:98
+#: src/statistics/lessonstatisticsview.cpp:106
 #, kde-format
 msgid "Remove confidence level from this unit and all sub-units"
 msgstr "從此單元與所有子單元中移除自信等級"
@@ -4327,17 +4327,17 @@
 msgid "Not practiced"
 msgstr "尚未練習"
 
-#: src/statistics/statisticsmainwindow.cpp:202
+#: src/statistics/statisticsmainwindow.cpp:204
 #, kde-format
 msgid "Known to Learning"
 msgstr "已知到學習"
 
-#: src/statistics/statisticsmainwindow.cpp:203
+#: src/statistics/statisticsmainwindow.cpp:205
 #, kde-format
 msgid "Learning to Known"
 msgstr "學習到已知"
 
-#: src/statistics/statisticsmainwindow.cpp:204
+#: src/statistics/statisticsmainwindow.cpp:206
 #, kde-format
 msgid "Mixed Directions"
 msgstr "混合方向"
@@ -4420,7 +4420,7 @@
 msgid "Remember for each Practice Mode"
 msgstr "記住每個練習模式"
 
-#: src/statistics/statisticsmodel.cpp:33
+#: src/statistics/statisticsmodel.cpp:37
 #, kde-format
 msgctxt "Confidence level in language, table header"
 msgid "Confidence (%1)"
diff -Nru parley-17.12.3/.reviewboardrc parley-18.04.1/.reviewboardrc
--- parley-17.12.3/.reviewboardrc	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/.reviewboardrc	1970-01-01 00:00:00.000000000 +0000
@@ -1,4 +0,0 @@
-REVIEWBOARD_URL = "https://git.reviewboard.kde.org"
-REPOSITORY = "parley"
-BRANCH = "master"
-TARGET_GROUPS = "kdeedu"
diff -Nru parley-17.12.3/src/collection/entryfilter.cpp parley-18.04.1/src/collection/entryfilter.cpp
--- parley-17.12.3/src/collection/entryfilter.cpp	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/collection/entryfilter.cpp	2018-05-02 12:17:01.000000000 +0000
@@ -148,7 +148,7 @@
     // lists of EduVocTranslations.
     if (Prefs::practiceMode() == Prefs::EnumPracticeMode::ConjugationPractice) {
         QList< TestEntry* > ret = conjugationTestEntries(ignoreBlocked);
-        if (ret.count() == 0) {
+        if ((ret.count() == 0) && showDialog) {
             KMessageBox::error(0, noEntriesError);
         }
         return ret;
diff -Nru parley-17.12.3/src/collection/readonlycontainermodel.h parley-18.04.1/src/collection/readonlycontainermodel.h
--- parley-17.12.3/src/collection/readonlycontainermodel.h	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/collection/readonlycontainermodel.h	2018-05-02 12:17:01.000000000 +0000
@@ -54,7 +54,7 @@
 public slots:
     /** Set the new source kvtml file
      * @param doc the new file */
-    void setDocument(KEduVocDocument *doc);
+    virtual void setDocument(KEduVocDocument *doc);
 
 protected:
     virtual KEduVocContainer *rootContainer() const = 0;
diff -Nru parley-17.12.3/src/dashboard/buttondelegate.cpp parley-18.04.1/src/dashboard/buttondelegate.cpp
--- parley-17.12.3/src/dashboard/buttondelegate.cpp	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/dashboard/buttondelegate.cpp	2018-05-02 12:17:01.000000000 +0000
@@ -19,6 +19,7 @@
 #include <QStandardItemModel>
 #include <QPainter>
 #include <QAbstractItemDelegate>
+#include <QAbstractItemView>
 #include <QApplication>
 #include <QToolButton>
 #include <KLocalizedString>
diff -Nru parley-17.12.3/src/editor/latexwidget.h parley-18.04.1/src/editor/latexwidget.h
--- parley-17.12.3/src/editor/latexwidget.h	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/editor/latexwidget.h	2018-05-02 12:17:01.000000000 +0000
@@ -16,6 +16,7 @@
 #include "ui_latexwidget.h"
 
 #include <QItemDelegate>
+#include <QItemSelection>
 #include <QtWidgets/QWidget>
 
 class QDataWidgetMapper;
diff -Nru parley-17.12.3/src/main.cpp parley-18.04.1/src/main.cpp
--- parley-17.12.3/src/main.cpp	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/main.cpp	2018-05-02 12:17:01.000000000 +0000
@@ -24,7 +24,7 @@
 /// @file main.cpp
 
 #include "parleymainwindow.h"
-#include "version.h"
+#include "config-parley.h"
 
 #include <KAboutData>
 #include <KCrash>
@@ -144,4 +144,4 @@
         parleyApp->show();
         return app.exec();
     }
-}
+}
\ No newline at end of file
diff -Nru parley-17.12.3/src/parleydocument.cpp parley-18.04.1/src/parleydocument.cpp
--- parley-17.12.3/src/parleydocument.cpp	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/parleydocument.cpp	2018-05-02 12:17:01.000000000 +0000
@@ -18,7 +18,6 @@
 #include "../config-parley.h"
 #include "parleymainwindow.h"
 #include "editor/editor.h"
-#include "version.h"
 #include "prefs.h"
 
 #include "vocabularyview.h"
diff -Nru parley-17.12.3/src/practice/multiplechoicemodewidget.cpp parley-18.04.1/src/practice/multiplechoicemodewidget.cpp
--- parley-17.12.3/src/practice/multiplechoicemodewidget.cpp	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/practice/multiplechoicemodewidget.cpp	2018-05-02 12:17:01.000000000 +0000
@@ -18,6 +18,7 @@
 
 #include "ui_practice_widget_multiplechoice.h"
 
+#include <QAction>
 #include <QDebug>
 #include <kcolorscheme.h>
 #include <QPushButton>
diff -Nru parley-17.12.3/src/settings/documentsettings.kcfg parley-18.04.1/src/settings/documentsettings.kcfg
--- parley-17.12.3/src/settings/documentsettings.kcfg	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/settings/documentsettings.kcfg	2018-05-02 12:17:01.000000000 +0000
@@ -16,5 +16,10 @@
     	<label>Visible columns in the main editor window.</label>
     	<whatsthis>Visible columns in the main editor window.</whatsthis>
 	</entry>
-  </group>
+    <entry name="CollapsedStatisticsViewItems" type="StringList">
+        <label>Collapsed tree view items of statistics view window.</label>
+        <whatsthis>Collapsed tree view items of statistics view window.</whatsthis>
+        <default></default>
+    </entry>
+</group>
 </kcfg>
diff -Nru parley-17.12.3/src/statistics/conjugationoptions.cpp parley-18.04.1/src/statistics/conjugationoptions.cpp
--- parley-17.12.3/src/statistics/conjugationoptions.cpp	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/statistics/conjugationoptions.cpp	2018-05-02 12:17:01.000000000 +0000
@@ -25,7 +25,7 @@
 #include <QtDBus>
 #include <QTreeWidget>
 
-ConjugationOptions::ConjugationOptions(KEduVocDocument* doc, QWidget * parent)
+ConjugationOptions::ConjugationOptions(KEduVocDocument *doc, QWidget *parent)
     : QWidget(parent)
     , m_doc(doc)
     , m_language(0)
@@ -37,6 +37,8 @@
     layout->addWidget(m_treeWidget);
     layout->setMargin(0);
     setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Expanding);
+    connect(m_treeWidget, &QTreeWidget::itemChanged,
+            this, &ConjugationOptions::processCheckBoxChanged);
 }
 
 void ConjugationOptions::setLanguages(int from, int to)
@@ -51,7 +53,9 @@
 
 void ConjugationOptions::setupTenses()
 {
+    m_treeWidget->blockSignals(true);
     m_treeWidget->clear();
+    m_checkStates.clear();
 
     DocumentSettings documentSettings(m_doc->url().url() + QString::number(m_language));
     documentSettings.load();
@@ -64,21 +68,27 @@
         tenseItem->setText(0, tenseName);
         if (activeTenses.contains(tenseName)) {
             tenseItem->setCheckState(0, Qt::Checked);
+            m_checkStates[tenseItem] = Qt::Checked;
         } else {
             tenseItem->setCheckState(0, Qt::Unchecked);
+            m_checkStates[tenseItem] = Qt::Unchecked;
         }
         tenseItem->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsUserCheckable);
         m_treeWidget->addTopLevelItem(tenseItem);
     }
+    m_treeWidget->blockSignals(false);
 }
 
 void ConjugationOptions::updateSettings()
 {
     qDebug() << "Save language selection";
-    QTreeWidgetItem* parentItem = m_treeWidget->invisibleRootItem();
+    QTreeWidgetItem *parentItem = m_treeWidget->invisibleRootItem();
+    if (parentItem == nullptr) {
+        return;
+    }
     QStringList activeTenses;
     for (int i = 0; i < parentItem->childCount(); i++) {
-        QTreeWidgetItem* tenseItem = parentItem->child(i);
+        QTreeWidgetItem *tenseItem = parentItem->child(i);
         if (tenseItem->checkState(0) == Qt::Checked) {
             activeTenses.append(tenseItem->text(0));
         }
@@ -87,3 +97,17 @@
     documentSettings.setConjugationTenses(activeTenses);
     documentSettings.save();
 }
+
+void ConjugationOptions::processCheckBoxChanged(QTreeWidgetItem *item, int column)
+{
+    if (column != 0) {
+        return;
+    }
+    Qt::CheckState newCheckState = item->checkState(column);
+    if (m_checkStates.contains(item) && (m_checkStates[item] != newCheckState)) {
+        m_checkStates[item] = newCheckState;
+        updateSettings();
+        emit checkBoxChanged();
+    }
+}
+
diff -Nru parley-17.12.3/src/statistics/conjugationoptions.h parley-18.04.1/src/statistics/conjugationoptions.h
--- parley-17.12.3/src/statistics/conjugationoptions.h	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/statistics/conjugationoptions.h	2018-05-02 12:17:01.000000000 +0000
@@ -15,26 +15,36 @@
 #define CONJUGATIONOPTIONS_H
 
 #include <QtWidgets/QWidget>
+#include <QMap>
 
 class KEduVocDocument;
 class QTreeWidget;
+class QTreeWidgetItem;
 
 class ConjugationOptions : public QWidget
 {
     Q_OBJECT
 public:
-    ConjugationOptions(KEduVocDocument* doc, QWidget *parent);
+    ConjugationOptions(KEduVocDocument *doc, QWidget *parent);
 
 public Q_SLOTS:
     void setLanguages(int from, int to);
     void updateSettings();
 
+signals:
+    void checkBoxChanged();
+
 private:
     void setupTenses();
 
-    KEduVocDocument* m_doc;
+private slots:
+    void processCheckBoxChanged(QTreeWidgetItem *item, int column);
+
+private:
+    KEduVocDocument *m_doc;
     int m_language;
-    QTreeWidget* m_treeWidget;
+    QTreeWidget *m_treeWidget;
+    QMap<QTreeWidgetItem*, Qt::CheckState> m_checkStates;
 };
 
 #endif
diff -Nru parley-17.12.3/src/statistics/lessonstatisticsview.cpp parley-18.04.1/src/statistics/lessonstatisticsview.cpp
--- parley-17.12.3/src/statistics/lessonstatisticsview.cpp	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/statistics/lessonstatisticsview.cpp	2018-05-02 12:17:01.000000000 +0000
@@ -34,6 +34,7 @@
 #include "statisticsmodel.h"
 #include "keduvoclesson.h"
 #include "utils.h"
+#include "documentsettings.h"
 
 
 // GradeDelegate shows the graphic colored bar in the statistics,
@@ -47,7 +48,7 @@
     }
 
     void paint(QPainter *painter, const QStyleOptionViewItem &option,
-		       const QModelIndex &index) const Q_DECL_OVERRIDE
+               const QModelIndex &index) const Q_DECL_OVERRIDE
     {
         QApplication::style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &option, painter, 0);
 
@@ -57,16 +58,23 @@
         }
 
         // Draw the colored bar.
-        KEduVocContainer *container = index.data(StatisticsModel::Container).value<KEduVocContainer*>();
+        KEduVocContainer *container = index.data(StatisticsModel::Container)
+                                           .value<KEduVocContainer*>();
+        QStringList activeConjugationTenses = index.data(StatisticsModel::ActiveConjugationTenses)
+                                                   .toStringList();
         WordCount  wordCount;
-        wordCount.fillFromContainer(*container, index.column() - ContainerModel::FirstDataColumn);
+        wordCount.fillFromContainerForPracticeMode(
+            *container,
+            index.column() - ContainerModel::FirstDataColumn,
+            activeConjugationTenses
+        );
         ConfidenceColors  colors(ConfidenceColors::ProgressiveColorScheme);
 
         paintColorBar(*painter, option.rect, wordCount, colors); // in utils
 
         // Draw the text telling the percentage on top of the bar.
         painter->drawText(option.rect, Qt::AlignCenter,
-			  QStringLiteral("%1%").arg(index.data(StatisticsModel::TotalPercent).toInt()));
+                    QStringLiteral("%1%").arg(index.data(StatisticsModel::TotalPercent).toInt()));
     }
 };
 
@@ -108,6 +116,11 @@
 	    this,     &LessonStatisticsView::sectionResized);
 }
 
+LessonStatisticsView::~LessonStatisticsView()
+{
+    saveExpandedStatus();
+}
+
 void LessonStatisticsView::setModel(ContainerModel *model)
 {
     ContainerView::setModel(model);
@@ -137,8 +150,7 @@
 void LessonStatisticsView::adjustColumnWidths()
 {
     int firstWidth = columnWidth(0) + columnWidth(1);
-    // Subtract 5 here otherwise we get a horizontal scrollbar.
-    int totalWidth = width() - firstWidth - 5;
+    int totalWidth = viewport()->width() - firstWidth;
     int columnCount = model()->columnCount(QModelIndex());
     int visibleColumns = 0;
     for (int i = ContainerModel::FirstDataColumn; i < columnCount; ++i) {
@@ -167,3 +179,76 @@
     KEduVocLesson *lesson = static_cast<KEduVocLesson*>(selectedIndex.internalPointer());
     lesson->resetGrades(-1, KEduVocContainer::Recursive);
 }
+
+void LessonStatisticsView::saveExpandedStatus() const
+{
+    auto statisticsModel = qobject_cast<StatisticsModel *>(model());
+    Q_ASSERT(statisticsModel != nullptr);
+
+    QStringList collapsedItems;
+    getCollapsedItems(collapsedItems, statisticsModel->index(0, 0, QModelIndex()), QString());
+
+    const KEduVocDocument *doc = statisticsModel->document();
+    if (doc != nullptr) {
+        DocumentSettings documentSettings(doc->url().url());
+        documentSettings.setCollapsedStatisticsViewItems(collapsedItems);
+        documentSettings.save();
+    }
+}
+
+void LessonStatisticsView::getCollapsedItems(QStringList &collapsedItems, const QModelIndex &item,
+                                            QString name) const
+{
+    if (!item.isValid()) {
+        return;
+    }
+
+    int rowCount = model()->rowCount(item);
+    if (rowCount > 0) {
+        // Item has children and therefore expandable
+        name += item.data().toString();
+        if (!isExpanded(item)) {
+            collapsedItems << name;
+        }
+        for (int row = 0; row < rowCount; ++row) {
+            getCollapsedItems(collapsedItems, model()->index(row, 0, item), name + '/');
+        }
+    }
+}
+
+void LessonStatisticsView::restoreExpandedStatus()
+{
+    auto statisticsModel = qobject_cast<StatisticsModel *>(model());
+    Q_ASSERT(statisticsModel != nullptr);
+
+    const KEduVocDocument *doc = statisticsModel->document();
+    if (doc != nullptr) {
+        DocumentSettings documentSettings(doc->url().url());
+        documentSettings.load();
+        QStringList collapsedItems = documentSettings.collapsedStatisticsViewItems();
+        setCollapsedItems(collapsedItems, statisticsModel->index(0, 0, QModelIndex()), QString());
+    }
+}
+
+void LessonStatisticsView::setCollapsedItems(const QStringList &collapsedItems,
+                                             const QModelIndex &item, QString name)
+{
+    if (!item.isValid()) {
+        return;
+    }
+
+    int rowCount = model()->rowCount(item);
+    if (rowCount > 0) {
+        // Item has children and therefore expandable
+        name += item.data().toString();
+        if (collapsedItems.contains(name)) {
+            collapse(item);
+        } else {
+            expand(item);
+        }
+        for (int row = 0; row < rowCount; ++row) {
+            setCollapsedItems(collapsedItems, model()->index(row, 0, item), name + '/');
+        }
+    }
+}
+
diff -Nru parley-17.12.3/src/statistics/lessonstatisticsview.h parley-18.04.1/src/statistics/lessonstatisticsview.h
--- parley-17.12.3/src/statistics/lessonstatisticsview.h	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/statistics/lessonstatisticsview.h	2018-05-02 12:17:01.000000000 +0000
@@ -28,23 +28,30 @@
 
 public:
     LessonStatisticsView(QWidget *parent);
+    ~LessonStatisticsView();
     void setModel(ContainerModel *model) Q_DECL_OVERRIDE;
+    void saveExpandedStatus() const;
+    void restoreExpandedStatus();
 
-private Q_SLOTS:
-    void removeGrades();
-    void removeGradesChildren();
+public Q_SLOTS:
+    void adjustColumnWidths();
 
 protected:
     void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE;
 
 private Q_SLOTS:
+    void removeGrades();
+    void removeGradesChildren();
     void sectionResized(int index, int /*oldSize*/, int /*newSize*/);
-    void adjustColumnWidths();
 
 private:
     void setModel(QAbstractItemModel *model) Q_DECL_OVERRIDE {
         Q_UNUSED(model)
     }
+    void getCollapsedItems(QStringList &collapsedItems, const QModelIndex &item,
+                           QString name) const;
+    void setCollapsedItems(const QStringList &collapsedItems, const QModelIndex &item,
+                           QString name);
 };
 
 #endif
diff -Nru parley-17.12.3/src/statistics/statisticsmainwindow.cpp parley-18.04.1/src/statistics/statisticsmainwindow.cpp
--- parley-17.12.3/src/statistics/statisticsmainwindow.cpp	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/statistics/statisticsmainwindow.cpp	2018-05-02 12:17:01.000000000 +0000
@@ -16,6 +16,7 @@
 
 #include "statisticsmainwindow.h"
 
+#include <QHeaderView>
 #include <QtCore/qsignalmapper.h>
 
 #include <KLocalizedString>
@@ -88,7 +89,7 @@
     m_doc = doc;
     m_statisticsModel->setDocument(doc);
     m_ui->lessonStatistics->setModel(m_statisticsModel);
-    m_ui->lessonStatistics->expandAll();
+    m_ui->lessonStatistics->restoreExpandedStatus();
     m_ui->lessonStatistics->resizeColumnToContents(0);
 }
 
@@ -195,6 +196,7 @@
     emit languagesChanged(knownLanguage, learningLanguage);
 
     updateVisibleColumns();
+    updateModelSettings();
 }
 
 void StatisticsMainWindow::initPracticeMode()
@@ -231,6 +233,8 @@
         setPracticeDirectionForPracticeMode(Prefs::practiceDirection(), previousPracticeMode);
         m_ui->practiceDirection->setCurrentIndex(practiceDirectionForPracticeMode(mode));
     }
+
+    updateModelSettings();
 }
 
 void StatisticsMainWindow::practiceDirectionChanged(int mode)
@@ -240,6 +244,8 @@
     if (Prefs::rememberPracticeDirection()) {
         setPracticeDirectionForPracticeMode(mode, Prefs::practiceMode());
     }
+    updateVisibleColumns();
+    updateModelSettings();
 }
 
 void StatisticsMainWindow::rememberPracticeDirectionChanged(bool checked)
@@ -273,6 +279,7 @@
         }
 
         m_ui->lessonStatistics->setColumnHidden(i, isHidden);
+        m_ui->lessonStatistics->adjustColumnWidths();
     }
 }
 
@@ -287,8 +294,11 @@
         QHBoxLayout* layout = new QHBoxLayout(m_ui->modeSpecificOptions);
         layout->setMargin(0);
         layout->addWidget(m_conjugationOptions);
-        connect(this, SIGNAL(languagesChanged(int, int)), m_conjugationOptions, SLOT(setLanguages(int, int)));
+        connect(this, QOverload<int, int>::of(&StatisticsMainWindow::languagesChanged),
+                m_conjugationOptions, &ConjugationOptions::setLanguages);
         m_conjugationOptions->setLanguages(Prefs::knownLanguage(), Prefs::learningLanguage());
+        connect(m_conjugationOptions, &ConjugationOptions::checkBoxChanged,
+                this, &StatisticsMainWindow::updateModelSettings);
     }
     m_conjugationOptions->setVisible(visible);
 }
@@ -318,3 +328,11 @@
     directions[mode] = direction;
     Prefs::setPracticeDirectionsByPracticeMode(directions);
 }
+
+void StatisticsMainWindow::updateModelSettings()
+{
+    m_ui->lessonStatistics->saveExpandedStatus();
+    m_statisticsModel->updateDocumentSettings();
+    m_ui->lessonStatistics->restoreExpandedStatus();
+}
+
diff -Nru parley-17.12.3/src/statistics/statisticsmainwindow.h parley-18.04.1/src/statistics/statisticsmainwindow.h
--- parley-17.12.3/src/statistics/statisticsmainwindow.h	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/statistics/statisticsmainwindow.h	2018-05-02 12:17:01.000000000 +0000
@@ -50,6 +50,7 @@
     void practiceDirectionChanged(int mode);
     void rememberPracticeDirectionChanged(bool checked);
     void updateVisibleColumns();
+    void updateModelSettings();
 
 private:
     void initActions();
diff -Nru parley-17.12.3/src/statistics/statisticsmodel.cpp parley-18.04.1/src/statistics/statisticsmodel.cpp
--- parley-17.12.3/src/statistics/statisticsmodel.cpp	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/statistics/statisticsmodel.cpp	2018-05-02 12:17:01.000000000 +0000
@@ -15,12 +15,16 @@
 
 #include "statisticsmodel.h"
 #include "statisticslegendwidget.h"
+#include "utils.h"
 
+#include <KEduVocExpression>
+#include <KEduVocTranslation>
+#include <KEduVocWordtype>
 #include <KLocalizedString>
 #include <QGradient>
 #include <QDebug>
 
-StatisticsModel::StatisticsModel(QObject * parent)
+StatisticsModel::StatisticsModel(QObject *parent)
     : ContainerModel(KEduVocContainer::Lesson, parent)
 {
 }
@@ -37,31 +41,59 @@
     return ContainerModel::headerData(section, orientation, role);
 }
 
-QVariant StatisticsModel::data(const QModelIndex & index, int role) const
+QVariant StatisticsModel::data(const QModelIndex &index, int role) const
 {
+    Q_ASSERT(!m_documentSettings.isEmpty());
+
+    KEduVocContainer *container = static_cast<KEduVocContainer*>(index.internalPointer());
+
+    // Entrie count
+    if (index.column() == TotalCountColumn) {
+        if (role == Qt::DisplayRole) {
+            switch (Prefs::practiceDirection()) {
+            case Prefs::EnumPracticeDirection::KnownToLearning:
+                return entryCountForPracticeMode(container, Prefs::learningLanguage());
+            case Prefs::EnumPracticeDirection::LearningToKnown:
+                return entryCountForPracticeMode(container, Prefs::knownLanguage());
+            case Prefs::EnumPracticeDirection::MixedDirectionsWordsOnly:
+            case Prefs::EnumPracticeDirection::MixedDirectionsWithSound:
+                return entryCountForPracticeMode(container, Prefs::knownLanguage())
+                    + entryCountForPracticeMode(container, Prefs::learningLanguage());
+            default:
+                return entryCountForPracticeMode(container, Prefs::learningLanguage());
+            }
+        }
+        if (role == Qt::TextAlignmentRole) {
+            return Qt::AlignRight;
+        }
+    }
+
+    // Colorbars
     if (index.column() >= FirstDataColumn) {
-        KEduVocContainer *container = static_cast<KEduVocContainer*>(index.internalPointer());
-        QVariant var;
+        int translation = index.column() - FirstDataColumn;
         switch (role) {
         case Container:
-	    // Return a pointer to the container we are working on.
-            var.setValue(container);
-            return var;
+            {
+                // Return a pointer to the container we are working on.
+                QVariant var;
+                var.setValue(container);
+                return var;
+            }
         case TotalPercent: // Average grade
-            return container->averageGrade(index.column() - FirstDataColumn, KEduVocContainer::Recursive);
+            return averageGradeForPracticeMode(container, translation);
         case TotalCount:
-            return container->entryCount(KEduVocContainer::Recursive);
+            return entryCountForPracticeMode(container, translation);
+        case ActiveConjugationTenses:
+            return m_documentSettings.at(translation)->conjugationTenses();
         default:
-            if (role >= Qt::UserRole) {
-                return container->expressionsOfGrade(
-                    index.column() - FirstDataColumn, role - Grade0, KEduVocContainer::Recursive);
+            if ((role >= Grade0) && (role <= Grade7)) {
+                return expressionsOfGradeForPracticeMode(container, translation, role - Grade0);
             }
         }
     }
 
-    // checkboxes
+    // Checkboxes
     if (index.column() == 0 && role == Qt::CheckStateRole) {
-        KEduVocContainer *container = static_cast<KEduVocContainer*>(index.internalPointer());
         if (container->inPractice()) {
             return Qt::Checked;
         } else {
@@ -72,9 +104,41 @@
     return ContainerModel::data(index, role);
 }
 
+int StatisticsModel::averageGradeForPracticeMode(KEduVocContainer *container, int translation) const
+{
+    WordCount wordCount;
+    wordCount.fillFromContainerForPracticeMode(
+        *container,
+        translation,
+        m_documentSettings.at(translation)->conjugationTenses()
+    );
+    return wordCount.percentageCompleted();
+}
+
+int StatisticsModel::entryCountForPracticeMode(KEduVocContainer *container, int translation) const
+{
+    WordCount wordCount;
+    wordCount.fillFromContainerForPracticeMode(
+        *container,
+        translation,
+        m_documentSettings.at(translation)->conjugationTenses()
+    );
+    return wordCount.totalWords - wordCount.invalid;
+}
 
+int StatisticsModel::expressionsOfGradeForPracticeMode(KEduVocContainer *container,
+                                                      int translation, grade_t grade) const
+{
+    WordCount wordCount;
+    wordCount.fillFromContainerForPracticeMode(
+        *container,
+        translation,
+        m_documentSettings.at(translation)->conjugationTenses()
+    );
+    return wordCount.grades[grade];
+}
 
-Qt::ItemFlags StatisticsModel::flags(const QModelIndex & index) const
+Qt::ItemFlags StatisticsModel::flags(const QModelIndex &index) const
 {
     if (index.isValid()) {
         if (index.column() == 0) {
@@ -85,7 +149,7 @@
     return 0;
 }
 
-int StatisticsModel::columnCount(const QModelIndex & parent) const
+int StatisticsModel::columnCount(const QModelIndex &parent) const
 {
     Q_UNUSED(parent)
     return m_doc->identifierCount() + FirstDataColumn;
@@ -96,10 +160,48 @@
     return 0;
 }
 
-KEduVocContainer * StatisticsModel::rootContainer() const
+KEduVocContainer *StatisticsModel::rootContainer() const
 {
     if (!m_doc) {
         return 0;
     }
     return m_doc->lesson();
 }
+
+void StatisticsModel::loadDocumentsSettings()
+{
+    m_documentSettings.clear();
+    if (m_doc == nullptr) {
+        return;
+    }
+    for (int i = 0 ; i < m_doc->identifierCount(); ++i) {
+        m_documentSettings << QSharedPointer<DocumentSettings>(
+            new DocumentSettings(m_doc->url().url() + QString::number(i))
+        );
+        m_documentSettings.last()->load();
+
+    }
+}
+
+void StatisticsModel::setDocument(KEduVocDocument *doc)
+{
+    beginResetModel();
+    m_doc = doc;
+    loadDocumentsSettings();
+    endResetModel();
+}
+
+
+void StatisticsModel::updateDocumentSettings()
+{
+    beginResetModel();
+    loadDocumentsSettings();
+    endResetModel();
+}
+
+
+const KEduVocDocument *StatisticsModel::document() const
+{
+    return m_doc;
+}
+
diff -Nru parley-17.12.3/src/statistics/statisticsmodel.h parley-18.04.1/src/statistics/statisticsmodel.h
--- parley-17.12.3/src/statistics/statisticsmodel.h	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/statistics/statisticsmodel.h	2018-05-02 12:17:01.000000000 +0000
@@ -18,6 +18,9 @@
 
 #include "containermodel.h"
 
+#include "prefs.h"
+#include "documentsettings.h"
+
 
 class StatisticsModel : public ContainerModel
 {
@@ -35,7 +38,8 @@
         Grade5,
         Grade6,
         Grade7,
-        Container
+        Container,
+        ActiveConjugationTenses
     };
 
     explicit StatisticsModel(QObject *parent = 0);
@@ -49,8 +53,25 @@
     /** Indicate supported drag actions
      @return enum of actions supported **/
     Qt::DropActions supportedDragActions() const  Q_DECL_OVERRIDE;
+
+    void updateDocumentSettings();
+    const KEduVocDocument *document() const;
+
+public slots:
+    virtual void setDocument(KEduVocDocument *doc) Q_DECL_OVERRIDE;
+
 protected:
-    KEduVocContainer * rootContainer() const Q_DECL_OVERRIDE;
+    KEduVocContainer *rootContainer() const Q_DECL_OVERRIDE;
+
+private:
+    int averageGradeForPracticeMode(KEduVocContainer *container, int translation) const;
+    int entryCountForPracticeMode(KEduVocContainer *container, int translation) const;
+    int expressionsOfGradeForPracticeMode(KEduVocContainer *container, int translation,
+                                          grade_t grade) const;
+    void loadDocumentsSettings();
+
+private:
+    QList<QSharedPointer<DocumentSettings>> m_documentSettings;
 };
 
 // For index.data()
diff -Nru parley-17.12.3/src/utils.cpp parley-18.04.1/src/utils.cpp
--- parley-17.12.3/src/utils.cpp	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/utils.cpp	2018-05-02 12:17:01.000000000 +0000
@@ -79,21 +79,93 @@
 
     foreach (KEduVocExpression *entry, container.entries(recursive)) {
         KEduVocTranslation &translation(*entry->translation(translationIndex));
+        evaluateWord(translation, translation.text());
+    }
+}
 
-        ++totalWords;
-        if (translation.isEmpty()) {
-            ++invalid;
-        } else if (translation.preGrade() > 0) {
-            // Initial phase (we assume correctness, i.e. if pregrade>0 then grade = 0)
-            ++initialWords;
-            ++pregrades[translation.preGrade()];
-        } else {
-            // Long term or unpracticed
-            ++grades[translation.grade()];
+
+void WordCount::fillFromContainerForPracticeMode(KEduVocContainer &container, int translationIndex,
+                                                 const QStringList &activeConjugationTenses,
+                                                 KEduVocContainer::EnumEntriesRecursive recursive)
+{
+    KEduVocWordFlags wordTypeToProcess(KEduVocWordFlag::NoInformation);
+    switch (Prefs::practiceMode()) {
+    case Prefs::EnumPracticeMode::GenderPractice:
+        wordTypeToProcess = KEduVocWordFlag::Noun;
+        break;
+    case Prefs::EnumPracticeMode::ConjugationPractice:
+        wordTypeToProcess = KEduVocWordFlag::Verb;
+        break;
+    case Prefs::EnumPracticeMode::ComparisonPractice:
+        wordTypeToProcess = KEduVocWordFlag::Adjective | KEduVocWordFlag::Adverb;
+        break;
+    default:
+        fillFromContainer(container, translationIndex, recursive);
+        return;
+    }
+
+    clear();
+
+    foreach (KEduVocExpression *entry, container.entries(recursive)) {
+        KEduVocTranslation &translation(*entry->translation(translationIndex));
+        if (isValidForProcessing(translation, wordTypeToProcess)) {
+            switch (wordTypeToProcess) {
+            case KEduVocWordFlag::Noun:
+                {
+                    KEduVocText article = translation.article();
+                    evaluateWord(article, translation.text());
+                }
+                break;
+            case KEduVocWordFlag::Verb:
+                {
+                    QStringList conjugationTenses = translation.conjugationTenses();
+                    foreach(const QString &activeTense, activeConjugationTenses)
+                    {
+                        if (conjugationTenses.contains(activeTense)) {
+                            KEduVocConjugation conj = translation.getConjugation(activeTense);
+                            foreach (KEduVocWordFlags key, conj.keys()) {
+                                KEduVocText person = conj.conjugation(key);
+                                evaluateWord(person, person.text());
+                            }
+                        }
+                    }
+                }
+                break;
+            case KEduVocWordFlag::Adjective | KEduVocWordFlag::Adverb:
+                {
+                    KEduVocText comparative = translation.comparativeForm();
+                    evaluateWord(comparative, comparative.text());
+                    KEduVocText superlative = translation.superlativeForm();
+                    evaluateWord(superlative, superlative.text());
+                }
+                break;
+            }
         }
     }
 }
 
+bool WordCount::isValidForProcessing(KEduVocTranslation &trans, KEduVocWordFlags wordType) const
+{
+    return !trans.isEmpty()
+        && (trans.wordType() != nullptr)
+        && ((trans.wordType()->wordType() & wordType) != 0);
+}
+
+void WordCount::evaluateWord(const KEduVocText &item, const QString &text)
+{
+    ++totalWords;
+    if (text.isEmpty()) {
+        ++invalid;
+    } else if (item.preGrade() > 0) {
+        // Initial phase (we assume correctness, i.e. if pregrade>0 then grade = 0)
+        ++initialWords;
+        ++pregrades[item.preGrade()];
+    } else {
+        // Long term or unpracticed
+        ++grades[item.grade()];
+    }
+}
+
 
 // ----------------------------------------------------------------
 //                         class confidenceColors
diff -Nru parley-17.12.3/src/utils.h parley-18.04.1/src/utils.h
--- parley-17.12.3/src/utils.h	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/utils.h	2018-05-02 12:17:01.000000000 +0000
@@ -20,10 +20,12 @@
 
 // KEduVocDocument library
 #include <keduvoccontainer.h>
+#include <KEduVocWordtype>
 
 
 class QPainter;
 class QRect;
+class KEduVocTranslation;
 
 // The WordCount struct contains the number of words in each category.
 // This could be used for number of words due, total number of words, etc.
@@ -36,6 +38,11 @@
     void fillFromContainer(KEduVocContainer &container, int translationIndex,
                            KEduVocContainer::EnumEntriesRecursive recursive = KEduVocContainer::Recursive);
 
+    // Fill the WordCount data from the container for the selected practice mode.
+    void fillFromContainerForPracticeMode(KEduVocContainer &container, int translationIndex,
+                    const QStringList &activeConjugationTenses,
+                    KEduVocContainer::EnumEntriesRecursive recursive = KEduVocContainer::Recursive);
+
     int grades[KV_MAX_GRADE + 1]; // Number of entries in each grade including grade=0, pregrade=0
     int pregrades[KV_MAX_GRADE + 1]; // Number of entries in each grade including grade=0, pregrade=0
     int invalid;	          // Number of invalid entries (not always applicable);
@@ -44,6 +51,10 @@
                                   // This is the sum of the numbers in pregrades[].
     int totalWords;		  // Total number of words
                                   // This is the sum of grades[], pregrades[] and invalid
+
+private:
+    bool isValidForProcessing(KEduVocTranslation &trans, KEduVocWordFlags wordType) const;
+    void evaluateWord(const KEduVocText &item, const QString &text);
 };
 
 
diff -Nru parley-17.12.3/src/version.h parley-18.04.1/src/version.h
--- parley-17.12.3/src/version.h	2018-01-10 07:43:29.000000000 +0000
+++ parley-18.04.1/src/version.h	1970-01-01 00:00:00.000000000 +0000
@@ -1,4 +0,0 @@
-#ifndef VERSION_H
-#define VERSION_H
-#define PARLEY_VERSION_STRING  "2.1.0" // To be released with Applications/15.04
-#endif