I am researching drones for use in my family farm operation. I'm looking at the Phantom 2 Vision+ and the 3DR Iris+. I have a few questions that I am trying to have answered to help make the decision. 1. When using the Ground Control app to set waypoints for autonomous flights, how far away can you set waypoints? If they cause the V2+ to go out of range, will it turn around and come back, or is there a way to override this? I would like to preprogram flights to survey fields or pastures that could be a mile away and review the video footage afterward. 2. I believe the V2+ can automatically take off when using Ground Control, but cannot land itself (though the Iris can). Has there been any hint that being able to land itself will be a feature in an upcoming release? 3. If the V2+'s battery somehow dies while it is out of range, is there a way to find it? I would have a general idea of where it is. Will it continue to emit some sort of signal to help pinpoint its location? Thanks in advance!