I want show two stereodisplay in Unity

I want to output multiple camera screens to one device.

like this image :

How to do it?

current using this version …
ZSpace Package : zCore Unity Package 6.3.1
Unity : 22.3.5f1
Product : ZspaceAIO

Are you trying to present a head tracked stereo view within a head tracked stereo view? Why? Wouldn’t it be far simpler to just place the 3d contents shown by the second camera within view of the first camera?

ZCamera isn’t designed to do this. You would need to modify it to alternatively draw to a render texture and do so in sync with the primary ZCamera’s left and right camera passes.

Again, there are probably better ways to present the content that you desire to show in that smaller secondary view.