how can I figure out the camera used in a scene for heresphere?

just the title. Trying heresphere. and gotta say. the picture looks way better for some reason. I bought with the intention to return.
I like in heresphere I can set the motion where it moves with my head and make adjustments. deovr wont ever let me do this. I can turn on the dof thing, and I cant adjust zoom anymore. it locks.
not to mention there are a dozen other things that make it worth the price.

Do I really need the camera type? Or jsut set pov? modern relationships says 200, but when I got to custom there are mroe settings than fov.

and can someone explain import vs export fov settings? thanks