Headlight adjuster screw, what does this do?

[Syberspace]

That screw adjusts to the left and right for each headlight. But, it only seems to make the adjustment while the vehicle and headlights are off (for my dynamic headlights). Found that out when trying to adjust the vertical and went to that first in a roadside panic

Thank you!

 

[Pitboss02]

I was able to adjust the vertical alignment with another screw. There is one recessed at the location in green.
The one with the sliding door, circled in red, didn’t do anything. At least that I could immediately see.
View attachment 352019

Did we ever determine if green side is vertical adjustment? Seemed like OP wasn’t 100% sure