Activate and deactivate VR

The game I’m working on was initially created just for vr (another person did all of the node construction) but now a fair number of people are requesting a non vr version. There are a lot of things tied to the VRPawn so I can’t just delete it and make a new one without screwing everything else up. I’m TRYING to figure out how to have the game turn off VR using “stereo off” command but then I can’t figure out how to switch the controls to allow the player to look around with a mouse.
And vice versa eventually. Allowing “stereo on” and turning off mouse input.