How can I use VR Headset to control my first person character's rotation ,and keep the eye location to where the camera is ?

[Franz_Guo (Xtremer Kai)]

I did it once before, moving my head also moves my character just like my mouse did, but I did some other tests so I deleted those functions(In blueprint).

Now when I put the headset on, my eyelevel is lower than before and rotation is not working, I can’t control it anymore, can anyone tell me how to do it? Big Thank you!