Is it possible to use 2 VR gears in one unity set at the same time.

I'm looking for a way to make a scene where two people can put on a VR gear and be in the same scene at the same time while being in the same room. I'm currently using VIVE and oculus (Iknow it isn't smart but these are the only ones avalible right now) but it doesn't work when I import both prefabs and place the CameraRig's is the scene. Both the camera's follow the position of the Oculus and the vive will only be in the demoscreen unless the oculus is disconnected. Is it possible to work? or with two vives? I'm not really good with Unity so all the tips are welcome :)