Organisation: 

Collection 'Scene': All objects arranged in the workshop scene. Here you can also find the background and the cameras. The object data is linked to clones in collection 'Toolset'.

Collection 'Toolset': All objects positioned in groups in the scene to the right. The object data is linked to clones in collection 'Scene'. Some of them have customizable procedural material nodes or more than one material. These have baked Versions in the collection 'Bakes'.

Collection 'Bakes' (not visible): Specific objects, which have ONE material with baked PBR textures. These are redundand objects from the other collections, where these have a procedural material version attached.