After a few false starts I finally got large waypoint grid surveys working on the Mavic 4 Pro. Litchi has a beta Hub that can output files you can put on the RC-2 Pro. Still Beta and it does have a few errors that crop up. The M4P is a bit tricky on resuming waypoint flights after battery change. Still I could get a 950 waypoint mission done with three batteries at 7 mph over 18 km. This was slightly amazing, since it was also lugging a survey IR camera on its belly and its GPS receiver on top. Should be able to do this easier as I work out the workflow a bit smoother. While not RTK...
I use Agrisoft, Metashape. You need a FAST computer or have something to read while you let it process. The model building takes around 30 minutes for anything near 1000 images.
Thanks for the response Dogpilot. I've ordered the DJI RC Pro 2, to see if i can get waypoints on it for the drone. Processing is not an issue, i have a very fast computer.
Regards
Gagey