Hacking M.A.M.E retro arch core 2003 ( How to access the service menus?)

[dragonz]

Hi - I currently have a ps vita TV with retro arch and I'm trying to access the service menu of a game
via pressing R2 on my DS4. But it wont work like it does on M.A.M.E core 2000, what button or combination of buttons do I press now?

 

[davidgilmour]

Not possible, they forgot to program it!