Alright I have my buttons setup on my CP as follows(numbered as joystick buttons):
1,2,3,26
4,5,6
I have a forth button on top for neo-geo/SNK type of games and I also use it as a shifted coin insert.
So... on neo-geo/snk types of games which use the forth button I change the input of 26 to 4, so I have the four button configuration to use. I have to do this on every game I use(only once) which can get annoying especially when upgrading/downgrading MAME. Is there anyway to tell MAME that if it is a neo-geo/snk game to shift the buttons automatically.