After a while of creating blueprints the map view will get cluttered with entities that are actually not placed, they only get cleared if you actually go over them. So if possible it would be nice that the 'Clear' button would also clear the map view making it "fresh" as the very first time you entered the lab.
Example: https://i.imgur.com/13Ly4eT.png
All you see in the image isn't actually placed as i pressed the 'Clear' button. Just to be more clear and avoid confusion the 'Clear' button works as intended removing all placed entities, just not in the map view.
Thanks for keeping this mod alive.