I am trying to redo my setup. I am using 8 button 2 player. Messing with LEDBlinky now. So since MAME defaults say for Player 1 button = KEYCODE_LCONTROL, JOYCODE_1_BUTTON1, and MOUSECODE_1_BUTTON1. Since using I-Pac with 8 buttons I will not use MOUSE_1. Don't seem to be able to just remove it in the TAB interface. There are other with issues in player 3. And would like to blank out 3-X since don't need them. Seems MAME now ONLY writes to default.cfg when something is changed so can't really edit defaults from MAME since file normally is blank now.