Just put:

[White Owl]

I just want to point out the old IL-2 wasn't exactly the perfectly beautiful ideal of user-friendliness to a brand new player. I very distinctly recall wrestling for hours with the joystick input curves before I got it working correctly. All the default joystick settings in Dover worked perfectly for me the first time.

Anyway, to answer your question... assign the keybindings you want in the controls options menu. Click "save as..." and name it something you'll remember. Click "apply". You're done.

Clear skies.