Official comment
Map Pilot offers overlap as the mechanism for adjusting the pass spacing and there are no plans on changing that. Since Map Pilot's main goal is mapping, this makes the most sense.
I am not sure what you mean by "Mission Mode" and "Photo Mode". Neither of those are terms that are used in Map Pilot.
Map Pilot is not designed for free flight use. Take a look at our Tag Pilot application for that.
https://www.mapsmadeeasy.com/map_pilot/flights/detail/9233F67F-C66A-4A21-85BB-C6DA0A0C657E/