Render textures to each eye separately [OVR plugin]

Hi,

I have streams from two cameras and and I need to pass it to left and right eye separately (AR effect).
For achieving that, I made scene in Unity with two textures on which the streams from cameras are displayed. 

I added to the scene two OVRCameraRig objects representing each eye and I set target eye "Left" to the first one and "Right" to the other. When I run my application I can see that target eye property is working but the problem is that when I test it with Oculus Rift gogles, these cameras are treated like separate displays and at one time I can see only video from one of them displaying on right or left eye in gogles.

What I need is to display these two streams simultaneously on both eyes and I don't know how to achieve that.
When app is running I can get it only on left or right side depending on which display is currently selected in the unity program. 

Another question is how to disable input tracking in OVR plugin, because I will have cameras attached to the gogles so I don't need the whole scene to rotate when I am moving my head.

Please guys I need your help here