Ah, that’s very nice! 
I haven’t got to nDisplay just yet, it’s on my to do list
In your video, you are moving camera, right? Or is it environment?
If it’s camera, then you can totally adjust this template. I assume you will need to change addresses for osc messages. If you enable debug on server, you can see what is sent out, or alternatively you can use software like Protokol from Hexler to pinpoint osc messages and values.
So with this template you can control xyz of cameras and pan, tilt, roll and zoom as well. Cool thing is that you can define how many cameras you want to use and switch between them while all values are saved (currently per session, but I think I’ll have to update the template as per save method from your post)
Is that something you can set up with nDisplay - multiple cameras and depending which camera is selected, content is rendered from that POV to screens?