Hello,
Honestly, I´m not sure if I understand. According to your description, you´ll see just one line of sight in UAV camera in case of changing positions? The point is that the UAV has just one camera so you can see just one direction. In case o ,,UAV controls" you can control the flight direction and ,,UAV turret controls" can mark ground by laser pointer. It means that this seat has advanced sight possibilities.
You can attach the video if you feels like I not understood to you. Version 1.66 have some sensors fixes which can relate to UAV camera too.

Thank you.

https://feedback.bistudio.com/T121561

In T123110#1568813, @Alwin wrote:

Hello,
Honestly, I´m not sure if I understand. According to your description, you´ll see just one line of sight in UAV camera in case of changing positions? The point is that the UAV has just one camera so you can see just one direction. In case o ,,UAV controls" you can control the flight direction and ,,UAV turret controls" can mark ground by laser pointer. It means that this seat has advanced sight possibilities.
You can attach the video if you feels like I not understood to you. Version 1.66 have some sensors fixes which can relate to UAV camera too.

Thank you.

Lex's link is topic related too..but I explain it again:

UAV has "driver" and "turret" cam/view. Before, when you were manually flying the uav, went out of the pilot view (so back to 1st person view on foot) , hit tab to enable PiP, you saw the pilot view in PiP... If you were on the turret (for example you storm a compound and need the turret view from above) and disconnected from the turret view, you had the turret view as the PiP view. So the Pic in Pic view was dependent on which view you've been in before you left the UAV view. I can also do a short video of it ... Right now, the Pic in pic view stays in the driver view, no matter what..So it is simply not possible to get the turret view as Picture in picture. That needs to be fixed

This has been fixed in version DEV, in next 1.67 the fix.