Removing an imported objects footprint

I am working on a Control Tower for a scenery I'm doing and have run into a problem. I needed an antenna tower from another object I had designed a long time ago, so rather than rebuilding the tower I imported the entire building it was attached to, deleted the building and kept the tower. However the "footprint" of that building has remained even though the current work area is considerably smaller. Is there any way to get rid of the "leftovers"?



Resource contributor
Group exactly only what you want to keep. Sweep the entire work space with your cursor select. Unselect only the group you want to keep, delete. Or get ThomThom's Cleanup3 to remove this and many other unwanted artifacts.


Resource contributor
Also make sure that all layers are active, edges are visible and that you unhide all.