@Obama I'm not sure if you can choose which keys to use for LMouse, but I do know that when you turn mouse keys on in the windows settings, the keys used for LMouse are 5 (on the numpad) and + (Also on the Numpad, + is double click)

for a level run are you allowed to buy ruby upgrades with rubies obtained from only the orange things?

Hi, i would like to know if scroll clicking is allowed ? Is it considering like mouse keys ?

Hi, scroll clicking isn't allowed, mouse clicks refers to using the keyboard to click in addition to the mouse