Once I make a scene (room, building, set, etc) that I like, I want to use it again. Saving the PZ3 uses up a whole lot of space and sometimes what I want to use is to be imported into another PZ3. So I parent all the props to one "character" and save the "Character" in the character library. Any character already in existence can be used as the parent. The props above are all parented to one of John Stalls walls (the double door). I've use a fish as a parent because of it's small size and the character can be rendered invisible or buried in something.
Gordon