Button to disable Google Cardboard VR mode through all scenes

The Google Cardboard demo comes with an option to toggle the virtual reality mode.

public void ToggleVRMode() {
Cardboard.SDK.VRModeEnabled = !Cardboard.SDK.VRModeEnabled;
}

I'd like to create a menu / button with a script which disables VR mode throughout all my scenes - is this possible?

Any help would be appreciated