LIBRARY Selection chooses the game you want to play from
amongst the ones you have. Your own stuff is listed here as well.
Selection allows you to switch between backgrounds, props and characters,
the major things you need to build a scene.
Parts Selection changes a lot depending on what SET you've
chosen. Below you see the PARTS of the character SET
for the Fairy Tale LIBRARY. Get it? You can mix and match
things if you want.