I think the Alt key is only used for accessibility of the menus (i.e., the underlined character in menus and dialog boxes indicates which action is performed when hitting Alt+that key), I don't know about Ctrl+Alt.
I think the Alt key is only used for accessibility of the menus (i.e., the underlined character in menus and dialog boxes indicates which action is performed when hitting Alt+that key), I don't know about Ctrl+Alt.