On pc this can be done by bringing up the game edit menu by hitting the g key I believe.
This is the correct answer. Thanks. AttractMode seems to have defaulted to the unexpected hotkey of "escape+down". Whatever works. It'll take a while to make entries for the ~90 roms that need it, but at least it can be done.
In your case, the easiest way to accomplish this would be to set up different displays with the executable you want for each set (e.g, MAME for most games, AAE for vector, Model 2, for Sega Model 2 ect.) Get all of this separate displays set up with the roms and executables you want. Then, go into the Configure>Emulators>Generate Collection/Rom List. Use this to include all of the arcade systems you want in one list, and generate one unified arcade game list. Go back to the menu and then go into the configuration of the displays you used to create your master list and mark them as "Show in Cycle- No". Then, all of the individual displays will not be seen, only your one large master arcade list, all set up to use the executables set per display. The only caveat to this is you would have to have your vector roms in a separate folder from the MAME, so when you generate a romlist, it includes only the specific roms you want for that list. This isn't a problem for most other arcade roms though, since you will already have them in separate folders for that specific emulator (eg. Model 2, Model 3, Naomi, ect.) since they don't work with MAME anyway.
