I just found this at MTS2. It seems like a very useful tool.
BGS as described by Numenor:
This is valuable if you, for instance, want to test an object you have created to see if it works with a specific EP; or to create a lot compatible with a lower game (without the BaseGameStarter, if you create a lot containing only base-game stuff, it will still require *all* the EPs! But if you create alot using, for instance, the "OnlyOFB" game, it will require *only* OFB, and *not* UNI, NL, FFS, GLS or Pets).
In a similar way, the Legacy BodyShop is useful if you have Pets and you want to test if your stuff works fine with *all* the games, and not just Pets.Download it
here
