Thank you Greg for you reply.
Normally I play games with Pimax 4K in Video Mode (extended mode) SBS with injectors like VORPX, Tridef and Reshade, but Piplay (Pimax 4K software) does not support headtracking. The best way to play it would be input Headtracking (Pimax 4K Gyro) and Mouse emulation output and there you can play anygame. Hope you can make it work.
Thank you