pretty much what the title says...its great that you guys have several emulators already setup for us, but, you DONT allow us to add our own.
Emulator of note (that I cannot believe you dont have, its literally the main emulator for this) is PPSSPP. The defacto PSP emulator. I tried to add it, and launchbox wont let me add it, since its not in the pre-defined list of emulators.
This is IMO a big oversight and needs to be corrected.