Magic Spell Autoattack?
It is annoying to after selecting target keep pressing "1.... 1.... 1.... 1...." to hit the target with magic.
Ideally, it should be as simple as using "ctrl", but instead of triggering the default attack action, using a skill (or a hardcoded shortcut, whatever you feel easiest to do).
I think there used to be in Input > Other a "Use magic attack/Switch magic attack" for that purpose but not sure if that code can be recycled.