ID:158868
 
Does repop return everything to the orignal stuff on the map(also deleteing user made things?)?
Well, according to the simple F1-key reference in Dream Maker:

===
Default action:

Reload the obj and mob instances defined in the world map. This "repopulates" a world to its initial state. Only objects that were destroyed will be recreated.
===

So I'd say what it does is basically check the world map for anything that was destroyed and recreate it where it was originally placed on the world map. However, if that thing is still kicking around somewhere, it wouldn't be created. Content the players created atop the map shouldn't be touched because it doesn't exist on the world map to be repopped.

I guess the reason why Repop works this way is because, technically, if you want to reset the world to its original state you could always just shut down and restart it. Also, if you wanted to put all the mobs back where they started, you can probably del them first before running repop.