How to view (BlueOS) multi camera stream?

If I use QGC I’m able to switch between cameras. But unfortunately I’m not able to view picture in picture, therefore I’d like view 2nd camera feed in some other way.

Setup: Rasp4 + Navigator + 2 USB cameras, Latest BlueOS, video endpoints udp: 5600 & 5601

I was not able to open the network stream on VLC.
Can anyone suggest how I can view the camera stream in general using vlc?
Or recommend some other software for that?