Google VR - how to change left/right cameras views

I want to change inter-eyes distance, however, changing positions of left and right cameras of GvrMain has effect in preview only, in Game mode views of VR lens stayed same. Is it possible and how to change inter-eyes distance, field of view parameter when using Google VR SDK?

Maybe you should call GvrViewer.Controller.UpdateStereoValues()
I found out that i have to do that after i change the culling masks on the lef/right eye cameras
See my original post here How to target different contents for each eye? · Issue #263 · googlevr/gvr-unity-sdk · GitHub