Hellouu! o/
I hope nobody suggested it already, at least i didn't saw anybody starting a topic cuz of it (if im wrong, sorry o/)
So yeah, it's simple: for example, everytime i want to buy 999 max repels, i have to click that arrow button until my finger dies. xd
Why not intending an 'enter amount' button with a 3 number limit? So you can't type in anything over 999 :P