[Austin]

A long time ago I remember finding a plugin that read entities from a file and did a total replace of the map entities with the ones in the file.
I can't find that plug in now.
Does anyone remember this?

If not can you give me some direction on what to do in a plug in to do the entity replace?
I have written a lot of plugins in but don't have any idea how to do the entity replace on map load.