Place an UAV operator and a "Greyhawk" UAV in the editor and hit the preview button. Once in the game, scroll wheel down and select the "open UAV terminal" option, right click on the UAV and select "connect terminal to UAV" then uncheck the "Autonomous" check box, then click the "Control Driver" option. Take off with the UAV and fly a distance away then scroll wheel down and select either the "take turret control" option or the "release UAV control" option. Observe as the UAV flies back to the point where it spawned and begins to circle.