I bought a Phantom 2 about a year ago. Flew it many times and made several videos. Now the place I work for bought a Phantom 3. They asked me to help them learn how to fly it, so I came here to get some quick pointers. (NOTE: They have not received the box yet, so I am trying to get ready for it.) 1) When we take it out of the box, do we need to download and do the calibration like I did with the Phantom 2? 2) Do I need to do the preflight compass calibration like I did with the Phantom 2? 3) Does it have Naza mode similar to Phantom 2? I would to set the limits to 100 feet high and 200 feet distance for the beginners. Also does it have Home lock and Course lock? 4) Anything else I should be aware of as far as basic flying? Many thanks!