OpenRA/OpenRA — pull request #4997 by Phrohdoh (2014-03-31 02:26:41+00:00)
Title: Pluggable and PluggableNode.

Added a trait pair Pluggable and PluggableNode
that allow nodes to be placed on a specified
cell of an existing structure.

I have no example to ship this with unfortunately as we'd want to have the option to remove actors that already exist in the cell but this was shot down on this trait pair so something else will need to be worked out.