hi. I m planning to make a coop game with Part in VR, and part on the desktop.
Like launching a scene, accessing / modifying parameters etc …
Do you think it would be possible to do such a thing with Unreal engine (doesnt have to launch in steam or oculus home)
Tks 
Yes it is, There are quite a few Out There. Did Something Like this in the Last gamejam.
welL is it possible out of the box ? within bps (using the spectator view func I guess, but seems hard to implement mouse control over it though) ? or should we install a plug ? how did you do it ?
Bp ist deine No need dir Plugin. How should your gameplay Look Like?
well, on screen, you have the VR spectator view with some UI on top, and another player can click buttons to affect the game. … something simple but yet quite unlcear
Then you can add a non VR pawn to the Scene, enable Input in it and handle Keyboard or Mouse in the pawn?
Try with the vr template