How do I enable mouse pitch for VR fps?

I’m making an underwater swimming game in first person.
When I play the game without VR, I can look up and down with the mouse.
When I play with VR mode, the mouse pitch is disabled and I can only swim up and down by looking with the HMD.

How do I enable mouse pitch again so swimming up/down becomes easier?

bump for answers
this can’t be too strange of a question?

still searching…

lets try this again: bump

Hi,
You will need to modify and recompile your HMD plugin of choice, as it is unsupported.
If you just want simple 6DoF its very easy to implement in the HMD plugin.

Note, this is not supported as changing the pitch independently of a persons head movement will make alot of people sick.