Just a suggestion, but for a future version of RadarBox, possibly 4.4??? (don't start!) how about a Preferences option to remove <GND> returns from the grid and map?
A lot of people (including me) won't be interested in ground vehicles etc, but perhaps they will be interested if they are actually there at the airport with their RadarBox.
Oops - just noticed that this is in the RB24 discussion - same argument applies to RB24 - how about a check box to remove ground vehicles without removing ground aircraft, Dev?
Rod