Free look in jets.

Hello there fine community. 

My question is -  How do you free look in jets on PC? 

I'm an absolute noob at flying jets but would like to get better at it.

Is there a button you can press in 1st person view that can allow me to free look with my mouse left and right out of the cockpit window in jets? 

Any advise is much apprieciated. I hope i've attached a screen shot of my button config correctly.