The Trigger on the DJI RS 5/DJI RS 4 series supports a customizable function. Press and hold the Trigger to assign Lock mode or FPV mode.
How to set:
1. Swipe up on the gimbal screen, and swipe from right to left on the screen to access the second page menu.
2. Tap “Press & Hold Trigger”.
3. Then “Gimbal Lock” or “FPV” can be set.