Doodads underneath floor

[Exide]

Hi.
How do I properly add doodads that are located underneath floors? (I still want to be able to walk over them.)

For example the doodad Coolant Pipes.

 

[PrisonLove]

You need to go into the terrain editor and then look for Terrain objects. Look for the terrain object that corresponds with the doodad you want (they're all properly named). Once you do that you can then add the appropriate terrain object from the doodad menu underneath your terrain menu terrain object, make sure you match up the location and facing angle. Hope that's not too confusing.