Another Mirror Question

[N10CVST]

Is there any way to adjust how much the passenger side mirror tilts down when reverse is engaged?

In my M3 I do this by moving the mirror adjustment button to the left (driver's side) then engaging reverse. The passenger side mirror tilts down.
While still in reverse I then move the mirror adjustment button to the right (passenger's side) and this allows me to change the position of my passenger side mirror. I move the mirror adjustment button back to the driver's side then engage neutral or a forward gear. The mirror tilts back up. The next time I engage reverse with the mirror adjustment button on the left (driver's side) the passenger side mirror tilts down to the way I adjusted it.

I tried this on my X5 and it didn't work. My passenger side mirror does tilt down but only in one way, I can't seem to adjust how much or how little it tilts down. Any comments, suggestions and or clarifications are welcome.