How to disable positional tracking for htc vive

I am an indie developer and developing a seated experience in VR for HTC vive. But the problem with seated experience is camera will not be in the position which I want to be rather it will go to the position where the player’s actual position in roomscale of vive. I just want to know if there is any solution for disabling this tracking??. Sorry for the bad English :).

You don’t need to disable positional tracking for that. You just need to implement a “VR centering” function which moves the VR Pawn where the HMD is. In this way the player will find themselves sitting on the virtual chair in the exact location where it should be.

I have answered a similar question here:
https://forums.unrealengine.com/development-discussion/vr-ar-development/1369453-vive-matching-vr-scene-to-physical-model

vr_marco thanks man!:).brilliant idea and really works!!!.