So?
Is this really so hard?
Just put in there a neat 'alternative view head movements customize toggle' function.
An alternative view on the same direction much like the example of the 'default: look front' and 'hat key forward: look front'.
use a certain key toggle and it takes u to alternative view. Any head position programmed under this key toggle and saved will be programmed as an 'alternative view' on that certain direction.
program this toggle into the joystick, and next time with a slight touch of button you'd easily be able to access the 'bob head and look at a little different angle' effect.
For instance, the 109s have this hideous horizontal bar placed across the cockpit when you look 'up, forward'.
You'd press this 'certain toggle key for alt. view'. Now, you are under alternative view mode. Look "up, forward", and press the page down key a bit. This is like when you look up forward, see something but the bar gets in the way, so you lower your head a bit to get a view. Save the head position.
..
Afterwards, when u look up, see that the cross bar gets in the way of your 'look up, forward' view, just press the 'alt view toggle' key, and the pre-programmed alternative head position would kick in. Simple to use just like the way someone would switch gun zoom on/off.
Just a matter of one more key, or one more button. And one more alternative view mode to program.