Comment 6 for bug 251866

Played around with this one, here's the status:

For old skin, section CSV import is not implemented with new timetables.

For flourish skin, CSV import works, but *always* creates a new section. It works this way, because it's unclear what combination of course/instructor/students uniquely defines a section (we got rid of specifying section ID).

What we can do:
a) Nothing - users just won't use CSV import to modify existing sections. No help text says otherwise.
b) Force users to figure out section id from URL in case they want to modify existing section.
c) Try to guess somehow what sections user may want to overwrite with each entry in CSV, list them, make user choose + "[ ] create new section".
d) something else?