>>312572435
I actually found it here after looking for it myself: https://forum.il2sturmovik.com/topic/58417-how-to-add-rotation-angle-to-check-your-six-in-vr/

It takes OpenVR, FreePie and Razer hydra. I found snapturns in OpenVR but it didn't have a way to bind them but that seems to be the workaround.