P2Start didn't work but that was because of my old mame default.cfg files that I copied from last machine.
We need to remake new default mame configs.
When using original default mame.cfg it still has problems.
We need to remap mame menu to hotkey press.
A and B are wrong again. Total crap. Why did they do this. This causes button 1 and 3 to be used for two button games. Dum. We need to swap a and x.