How to make Objects de-spawn (disappear).

[Apjjm]

So you want to de-activate every item on a bookshelf and the bookshelf - then activate another one, but stuff like shelves won't disappear? You might want to consider making a new secret shelf entity if this is the case (don't worry about making it a proper move-object or anything - using the rotate property (and disabling the move and center) properties of a sticky area can create the same effect. This would be faster and easier than naming all the objects according to a pattern and de-activating and activating in a loop based on that pattern - i can mock up a script for this if you want though.