As with Retropie / Retroarch, it would be great to have a global hotkey assignment to exit non-mame emulation. Most either need ESC or CTRL-Q. (PCSX2, Daphne..ect.) I am currently using antimicro for this. This program allows me to assign a key and have it activate the assigned button after a number ...

I would love to see this feature as well. My kids and I have monthly arcade game high score competitions and this would really assist seeing if your score was beat.