I appreciate there is a long list of feature requests for 2.0, but this one might be quite simple and I think could be useful. The ability to instruct an aircraft to make a left or right orbit (360) in the present position.
e.g. "UAL123 ol" (orbit left) or "UAL123 or" (orbit right)
On completion of the orbit the aircraft would continue tracking on the original heading again.
Hope it can be considered.