Thanks for the reply! I guess that the floor like graphics set me on the wrong footing.

And the outdoor shower is working just fine!

Hi, after succesfully playing the first three campaign parts it seems that I'm stuck in part four. I've created the cells as per the provided layout but when that design is finished I can't set the room to cell as the cursor remains red. I must be overlooking something here but I can't see what's go...