Cruise control=
Use PAD buttons near the record video button. Press the upper one, H will move forward, and continue to move forward, press the up button again it will move faster.
Same with other directions. Move the RIGHT stick around and it will cancel the cruise control.
You can hit the UP cruise, and the left/right cruise and the H will do a slow circle until you cancel it.
I tried it and it works really slick, can get the H to do a slow orbit while you deal with the camera.
Only things missing is ability to plan a mission using a map (third parties are working on it), and the ability to use the AUX button for GPS on/off.