Mitsubishi NR-261 Manual page 304

Mitsubishi Multi Communication System
4. Touch [Set Area].
1
NOTE
Scroll using the joystick to change the position from the
displayed location to a different location. After the change
has been completed, press the [ENT] key.
1-304
Touch [Adjust Size] to widen or shrink the range of the
avoid area. Complete by touching [Set Area] after the
change.