some more info: according to http://www.xgaming.com/service/images/Layouts/PC-MAC.htm : P1 SELECT is the side flipper button on the left P1 START is the 1P button C is BTN_TL, 5 is BTN_TR P2 SELECT is the right flipper side button P2 Start is the 2P button ] is BTN_TL, 6 is BTN_TR I'd be you, i'd mapp slect to the flipper button, andnhotkey on either BTN_TL or BTN_TR. But you can do as you wish