There is an option for Emulator Groups. Now mind you, I do not use them but there are others that have and can give you their expert guidance. In a nutshell, you will have to have your ROMS divided for the emulators that you want to run them specifically in their own ROM paths. Then, via Setup Wizard, you will set-up the emulators for these ROMs in an Emulator Group. When viewed through GameEx, it will appear as one listing with all the ROMS, regardless of the emulators running each. High Level Example: Emulator 30 Project 64 Rom Path c:\ROMS\Project 64\ROMS (this path would contain ROMS A B C and D) Emulator 31 MESS Rom Path c:\ROMS\MESS\N64 ROMS (this path would contain ROMS W X Y and Z) In the Emulator groups, you will select Emulators 30 and 31 In GameEx, the Game List will display ROMS A B C D W X Y Z I hope this helps!