THEBillCipherism

I've setup RetroArch into LaunchBox as a good way to easily use my roms, and I recently went from downloading SNES roms to Gameboy roms, and I have to keep adding a custom parameter every time so I can run the gambatte core, is there a way to play any category without adding custom parameters to each and every game I play? TL:DR I have RetroArch, I use LaunchBox with it, I setup the SNES core in RetroArch and now I have to custom parameter the Gambatte core with my Gameboy games, can you help?