One of the things that has been irking me for a while is that radar units are placed in a line rather than a square pattern, similar to storage units. I think this change would be better suited for the radar.
Ooh. Could take it one step further and make it like the Umbrella. So if you click and dragged an build command from the entire planet then they would be placed far enough to cover everything with the radar, but not right next to each other so they're useless.