https://www.youtube.com/watch?v=Embt...ature=youtu.be

Copied from video description

I had hotkeyed my [Left D-pad] and [Confirm] keys to my / and 0 numpad respectively. By holding down / and tapping 0, i was able to mass purchase Coke in a short amount of time.

Certainly beats moving the mouse and torturing your left click or alternating 0/0.

http://puu.sh/jO7jv/933c27a725.png
http://puu.sh/jO7lw/bec0f29343.png