container is the closest you can get
though you won't be able to remove parts using the destroy action because container tightly tie the objects together so they can't live without each other.
In other terms, if you destroy one object from a container, all the other object will be destroyed and if you create one, all the other will be created.
So to achieve your effect I would advise to remove them by setting them to invisible.
Anyway... containersYann2013-07-23 22:37:13