I fly a DJI Air 2S and have been given an assignment to capture photos of various points on a construction site at day and night. I have rough coordinates and will need to take the photos (one for each cardinal direction) at varying heights. I've never preprogrammed a flight before, but I think this might be a good time to do so, especially since I'll need to capture the same angles/heights at two different times. I've been doing a quick search, and it doesn't appear that the Air 2S can do this with the DJI Fly App. It appears Litchi may be an option. Are there any other solutions or apps I should consider? (free is great, but I don't mind paying if it's worth it)