On mames .116 and .117 I was able to set a 3 punches and 3 kicks button with the custom controls thing, but setting a custom 1 and 2 button, then going to custom controls and typing 1,2,3 and then 4,5,6. But on .119, this doesn’t work. I hit the number keys and nothing comes up. Any idea why? Is it done differently? is my .119 defective? Any help would be appreciated 
Just set each key twice and make the second key the same for all 3 punches, etc.
No, that doesn’t work. When you set 2 buttons for an input it makes it so neither work. It’s so weird because 119 has the same setup for it as 117, except when you hit the number keys to set the custom buttons, nothing happens. It’s like a programming error or something unless they changed what you have to press. But Ive tried everything.
u don’t need 3Punch or 3Kick for .116-.119, just use mame32K for that, it’s just much easier, but if your that desperate to use .119 for 3Punch, i have no other solution on how to get that work