Just flip the switch on your transmitter to the RTL position, and your drone will initiate the landing sequence.
How to enable
If you’re running an AgEagle — no need to do anything. It’s been automatically updated, and your firmware is recent enough to make use of it.
If you’re not using an AgEagle — you need to set the parameter RTL_AUTOLAND to 2.
You also need to be running the ArduPlane firmware V3.2.0 or later.
Happy and safe flying!