My idea is to create a (sub-)Platform inside a Platform. This I would use, for example, to separate the Super Famicom games from SNES games, and the SNES Hacks, and other "subcategory" of SNES (separate, but still together, nested).
Maybe I can explain it like this:
> Consoles
> SNES
> Japan
> Hacks
> MSU
So in the SNES Platform we have only the "normal" (US released) SNES games. Then in the 'Japan' sub-platform are the Japan-only releases. Then in 'Hacks' sub-platform are all the SNES hacks. Then in 'MSU' sub-platform are all the enhanced SNES games. Etc.
I have tried this two ways, but didn't work:
1. Playlists. If I add a game into a Playlist, and that Playlist into a Platform, the game stays in the Platform too. I don't want a Japan-only game to appear in the main Platform, I want it to appear only in the 'Japan' sub-platform.
2. Categories. I could create a Category "SNES" and sub-categories "Japan", but I can't add games into a Category (at least I tried and it didn't work).
Are there any solutions for this in LaunchBox?