Way to have multiple versions of the same emulator?

[dryden]

Is there a way to have multiple versions of the same emulator?
In my many roms I have some that require specific different versions of mame. If there anything I can do to tell attract to launch this rom with that version and that rom with another version?

[nevincho]

After v 2.2.1 in AM have Option - Edit game. In this option have - Custom Executable. Try it.

[xbs]

Or...
1. Name each emulator differently
e.g. mame137, mame143, fusion, neogeo, etc.
2. Put the roms in the appropriate emulators.
3. In AM/Emulators > Generate collection/rom list with the emulators you want and name it e.g. Multi.
4. Add a new display and select "Multi" in the Collection/Rom list.