Adding useful units as builder utilities to the world builder

[ghost]

Units that have no model other than a waypoint and a name. Here are some examples: A unit which gives Radar so you won't have to use a USA Command Center that also has the spy satellite ability or a Radar Van which can still be selected, even when out of the map using the unit cycler hotkeys. Multiple units which gives power, like 5, 10, 20, 50, 100 and 1000. Multiple units which clear shroud and are revealed to everyone, like superweapons. So if you were to have a spot that you want to reveal to every player, you won't have to clear the shroud to every possible player and simply spawn them and then delete them when unneeded. Maybe you guys can think of more.

I think it could be very useful, what do you guys think?