Single Screen View when using VR headset

[Mungee]

I have been told that when VR first came out, "IL-2 : Greatest Battles" would display activity as a single screen (and not as a split screen which is the default mode for VR headsets such as Oculus Rift S).

 

For some reason this was changed and after the opening splash screen (as a single screen) one now gets the menu screen (and subsequent screens) as a split screen.

 

Is there a way of getting the display activity to show as a single screen on the monitor (and not the split screen that it currently displays)?