Genesis Plus GX seperate configs for Genesis, Master System, GameGear and SG1000

Is it possible to have seperate configs for these systems? They all use the same core so I’m wondering if it’s possible. I know I can do per-game config but I don’t want to have to do a config for every game in my collection. Also by the same logic is it possible to have seperate configs for Gameboy and Gameboy Color? I use Gambatte Core

No, RetroArch doesn’t have any concept of systems, only cores. You can, however, make a copy of the core and rename it and then use per-core configs to have one for the renamed core. This won’t work with overrides, I don’t think, since they work from the core’s internal naming system, while per-core configs work from the filename (I think; I don’t use either, so I’m not super-familiar with the finer details).

Im not sure what your front end setup is, but Rlauncher supports this by naming the cfg after the system. example: “Sega Genesis.cfg” “Sega Master System.cfg”