First of all, as I said before, thanks a lot team for your hard work. It's an awesome Emulator and one of my favorites by the way. You really tamed the beast
The only two things that I'm missing are per game control config (Each game behaves differently and have different controls. That means you have to configure various versions of Demul in a Cabinet) and hooked up outputs (Lamps, shaker motor, FFB, etc. Just hooked up to be read by an external App like Mamehooker). This is just my two cents.

Thanks also for your great contribution to Mame too.