VR Game Template

working on a VR installation. Essentially we have a user on a swing wearing the Oculus Rift, and they have the sensation of swinging in the virtual world we create in UE4. We have managed to get the first person POV that looks nice from the VR Game template, but we cant seem to figure how to hook up the positional tracker so the movement on the swing is shown by moving our character or camera . We are planning to have the positional tracker on a wall in front of the swing, so we need to translate that forward/backward movement to the forward/backward movement of our character or camera. It is not necessary that we actually have a physical character, it could be nice, but as long as the camera moves convincingly we are happy.