Feature Request: Ask for Confirmation on permanent label actions

[jadenecke]

There is a call for confirmation on reset_segmentation and clear_slice in the menu. However there is non for irreversible label actions, namely fill_connected_3d, copy_labels_from_lower_slice, and copy_labels_from_higher_slice. Especially the first is detrimental as I sometimes fat-finger the '6' when i am trying to hit '+' on my num-keypad. You know, when the whole program is not responding for a couple of seconds that you messed up and it always takes me 15 mins to redo my prior work, assuming you practice saving your labels every so often.
I already tried to fix it myself tinkering around with the Display.menu.base file (#f935ce79faa4c8a584a8df2d30d8d6df17d40f21), however after compiling it, it seems to do nothing. I have never worked with C so that might have been a completely wrong approach.

Best

[vfonov]

well... Display was written mostly in yrs. 91-96 and the last person who really knew how it functions left 5 years ago. Ever since it is on life support mode.