Button to change from VR to Non-VR

Ello, so I’ve made a great wee cardboard demo.
I’m wanting to have a non-VR version and was wondering if that is possible within the same package? Is there a way through blueprints I can create a button that a player can press to toggle between VR and non-VR modes?
Any tips or advice on how to best do mouselook on a touch device would also be welcome.

Thanks folks.