Rotate VR Camera

I am trying to rotate the VR camera but none of the nodes work. I assume this is because the Camera is Using the HMD to determine the rotation and location, thus this is overwriting my inputs.

The player is expected to walk around, so we are building a system to calibrate the scene by lining it up with a real world set we are creating. Of course, rotation needs to be set as a result of this. We can’t rotate the entire actor, since the player may walk away from from the actor origin, meaning setting rotation would move the camera location, which we can’t have.

Is there any way to simply add rotation to the camera while HMD tracking is enabled?