First of all if you read all the "readme" files and manuals that come with IL2 Sturmovik and it's patches you will find all the answers there for just about everything.
Next if you have a hat-switch then all you need is to set thing so you are using snap-view. After that is done then set the hat switch so that when you push it straight-forwards nothing happens, it maintains the forward view. Lastly set a base button on your stick to "look up". Now with a combination of the "look up" button and the hat switch you can instantly snap to any view you need to and when you release the buttons the view will snap back to straight ahead.
I have been using the hat switch in this manner to fight and fly with for the last dozen years and I am still shooting down arm-fulls of track-IR users every week that are much better than ACE AI.
Here is one of my videos showing hat-switch use on a hard settings server, what am I missing? Nothing......