There are changes in the version of RC 1.66.
When you use the UAV, the PIP window of the camera of the UAV broadcasts the image from the pilot's camera. Hasn't found an opportunity to switch broadcasting for PIP from with the pilot chamber to chamber arrow.
P.S.
On version 1.64, the PIP window of the camera of the UAV broadcasts the image from the shooter's camera.
Maybe of course the switch of the camera will find application in some scenes. Didn't think of need of this function for PIP yet.
My priority remains on the image from the shooter's camera.
The image of the camera of the shooter in PIP is caused by strategic application in a game.