One improvement to the creation kit that would be really helpful to me would be for statics to have the option to set a property of "locked" so no changes could be made to it without unlocking it.
After fiddling with getting room walls, floors, ect exactly right I keep accidentally moving them leaving gaps while intending to move move object in the room instead. I try to pay attention but it does happen. Sometimes it happens without my notice until much later then I have a lot of work to trash and need to start over.

This is already a feature in the CK. If you select an object in the render window then hit 1, it becomes partially transparent and can no longer be moved or selected. Hitting 1 again (With it still selected) makes it entirely invisible. Hitting Alt+1 returns all objects to the visible/selectable state, though sometimes they dont show up properly until you reload the scene. (With F5)

Thank you, Alexander. That's just what I needed.