Hi, IPGP. Thank you for reaching out. Please check information below:
1. How to delete KML files from the remote control?
As shown in the photo below, connect the remote control to the computer through the USB-C cable. The computer can read the memory of the remote control, find the DJI\KML path, and delete the files in the KML folder.
2. How to delete old planned missions from the remote control?
Please refer to the photos below. At present, the old planned missions of the remote control cannot be deleted at once, only one can be deleted at a time. Just swipe to the left side to see the delete button.
Hope this helps. Thank you for your support.
You're most welcome, IPGP. Should you need further technical questions or concerns, don't hesitate to reach us here again at DJI Forum. Have a good one.