Assigning FBNeo core only to NeoGeo games. The rest to MAME

[asong26launchboxer]

Within Retroarch, I have MAME & FBNeo cores with different default / global control schemes + bios settings, etc.., So it's very imortant to be able to launch these games with specific platform assigned emulators.  I am not seeing this option in Android.  I am trying to get Launchbox Android to only launch MAME games with the MAME core, and make all NeoGeo games to only launch with FBNeo core.  I am unable to do this using the UI.  Everything is classified as 'Classic Arcaid' and MVS section under it, so if I change the emulator settings for the NeoGeo MVS section, Launchbox is changing the whole Classic Arcade section to FBNeo which is not what I want.

 

Is there a simple way to work around this?  Please help!  There is no way I can go through each and every game and set override individually.  Should be able to do this via platform / folder group or something..