Just FYI: took the video today. Got both srt and mp4 files and will begin working on how to put those together this week.
I ended up having to use DJI Go app instead of Litchi (which I wanted for the preflight prep work). I tried to download the Litchi App on my phone (Samsung S5 - Android) and the Google app store said I "did not have the right kind of instrument", or something of that nature. I guess Litchi does not work on my particular phone. Bummer.
I know how to do the waypoints with DJI GO, but I only had one battery. So I felt it best to just make my way around flying myself to conserve the time I would have used building the waypoints. My first time up, using the maps view to navigate, I had my first opportunity to use RTH in an emergency. I flew it right into the face of an unusually large tree, and the collision avoidance stopped me dead in front, probably 130 ft. above ground. I was too afraid to move it around to try and extricate it myself, and hit RTH button. It turned and came right back and landed in front of me. Scary as heck, but so awesome that it worked as it was supposed to.
The rest of the flight was a piece of cake. I've got some really great video that is rendering right now, and tomorrow I will check the various places mentioned here (Dashware and Phantom Overlay) to learn how to take the srt files and burn them into the mp4 files so that I can see the GPS coordinates as it flies around.
Thank you everyone for your help!