Figured out a way to do this, so posting in case it helps anyone else. The mod "cVc Dead Wasteland" includes a category called "Working Guards". The category includes furniture objects that you can assign a settler to as a guard post. You can assign one settler to 1-3 different objects, and then they'll patrol back and forth between them, using any idle markers you put in their path. In my case, I put down a desk and then two computer consoles (one by my recycler, one by my sorter) - the end result is that the settlers appear to walk around the factory area as they path between the three objects. Along with the "Inspect", "Use Clipboard", and "Use Wrench Kneeling" idle markers from SAM, I've got a fully functional factory floor now! :cool: