Maximum Waypoints - DJI Phantom 4 Pro

Hi Graham, 

It is based on the waypoint, not the turn. You could technically have 49 flight lines in the fast mode. I would recommend following the above workarounds for more flight lines. 

Recently, the feature of renaming the project is not available, a lot of users has requested this feature and we have been working on it, but I can’t provide the specific timeline for the feature to be released.

If you are using Android you can import .kml file following the steps explained in the article (Android) How to import .kml/.kmz file. However, the iOS device doesn’t support this feature. There are some workarounds to change the background maps.