How to prevent Opera from showing opera menu on alt button press?
Opera version: 10.60_pre6351, amd64, Gentoo (Linux)
The menu that I am talking about is this:
How you get there:
CTRL+F12 (or menu -> Settings -> Preferences)
Click Advanced tab, Shortcuts at the bottom (step 1 on pic);
Perform step 2 (click on edit on the shown part);
Use the hit at the bottom..
(Okay forgot step 5: select it; step 6: click delete.)