Is there an option I'm not seeing to toggle between having a mouse cursor and free-look; what the game calls Steer?

I know I can use LMB+RMB or map an alternate forward key to the "Steer" action in Keybinds (maybe even 'W'), but that only works when moving forward. I want mouse-look/free-look always sometimes (including backwards and strafing, like any 1st/3rd person action game).

If not, please add one.

I literally had to order a new mouse last night because I wore out my RMB. And Anker doesn't seem to make gaming mice anymore