I suggest you to read the Help section on the Litchi website.
You can set up to 2 different custom functions, for the C1 (left) and C2 (right) custom keys located on the remote controller.
You can also bind 2 different custom functions to C1 Long press and C2 Long press.
For the
Mavic Mini 1 and Mini SE: C1 is the RTH button and C2 is not available. Long press is not supported.
For the
Mini 2/
Mavic Air 2/
Air 2S: single tap on Fn button for C1, double tap on Fn button for C2. Long press is not supported.
For the Spark and Mavic Air: C1 is also called the Fn button.
In addition, for Mavic Pro,
Mavic 2 Zoom/Pro or when using the
Smart Controller you can bind custom functions to any of the 5 buttons of the 5D joystick.
One option is:
Waypoint at Aircraft (Waypoint): In Waypoint mode, adds a waypoint at the aircraft location. The newly added waypoint will have its altitude, heading and gimbal pitch angle automatically set to the current aircraft altitude, heading and gimbal pitch angle.