There are several keyboard shortcuts that do not seem to work for me. I am using a German keyboard. I think this only happens when I have to use a modifier key that does not have to be used in case of a US keyboard.
Example: One can comment/uncomment code by pressing the shortcut "Alt+/". However, on the German keyboard, the "/" sign is on the 7-key and reached by pressing "shift-7". So, I will have to press "Alt-Shift-7", which Mathematica does not recognize as Alt-/.
There are other examples where a certain symbol needs Shift or Alt-Gr to be reached; in each case the shortcut does not work.
Any ideas to make all this work also for the German keyboard layout, short of changing the actual shortcuts?