Any way to set Vive HMD offset?

I know that the Oculus SDK had/has a function to set the initial position offset of the HMD in game, but I don’t see anything like that for the HTC Vive. Is it possible to do this?

You can follow this doc.
https://docs.unrealengine.com/latest/INT/Platforms/VR/VRCameraRefactor/index.html#upgradingpreviousvrcamerasto4stop11