After turning on the fence switch, the aircraft will fly within the three-dimensional range that has been set
2. Restriction behavior: When the aircraft flies to the fence boundary, you can choose to trigger the landing, return and restriction behavior (the aircraft just cannot fly out of this range, and other operations will not be affected);
3. No-fly zone trigger behavior: when the aircraft flies to the border of the no-fly zone, you can select the trigger behavior to land, hover and return;
4. The remote fence is turned on: After it is turned on, you can set a no-fly zone on the aircraft through the computer background.
