Sorry if this has been answered somewhere, but I could not find anything searching.
You have a part in an assembly and it has been rotated to an unknown angle. How do you rotate it back to horizontal or vertical using just the steering wheel?
There's a million ways to do it without the steering wheel, but I want to use the steering wheel.
In effect I suppose I want the steering wheel to snap to vertical or horizontal during a rotation event, obviously after I have already aligned the steering wheel to the face/edge of the part that I want.
Angle PMI dimensions are non-driving in assembly as far as I can tell.
I think I have understand Your question and the solution might be very easy.
See attached video, where I have a copy of the handle, turned somehow to the lower one.
Select it, place the steering wheel at the axis AND now this is the important step AND click the blue point whit presse SHIFT button.
This allows You to orient the steering wheel in a 2D mode to have an appropriate starting position from which You now can easily rotate the handle to the wanted final position.
In such a case I would use the "Occurency Properties" of that part.
With them You can define the absolute position in space for any grounded component.
this was before and that one would be after changing the Z angle value
For doing it with steering wheel only without any reference seems to be impossible
Using planer align or mate with a floating offset may be what you are looking for.