So If you want to build stuff while you in VR and interact with them you HAVE to use the “VR Mode” in UE4 editor.If you don’t need to be in VR while your making the game and just want to test the game in VR after you can go into the “Active play mode” tab just below the play button in 4.24 or above and select “VR preview”. This allows you to use the controller meshes that you have programmed into the game instead of the forced Vive controllers with the lazer in “VR Mode”. As an example I have added my own controller scripts to my pawn and when I press play I have it set to VR Preview so my controllers are the ones that I made which have an Oculus mesh.Hope this answers your questions.