horizontal

Anybody know how to adjust the dipped beam horizontally? The vertical alignment is fairly obvious with the white screw at the back of the headlamp, but the horizontal adjustment is not so obvious.:(

This is possibly another silly question, but in the manual I've found references to a 'maintenance' or 'service' position (i.e. horizontal) for the wipers but nowhere I can see does it tell you how to do it (please put me out of my misery if it is there somewhere and tell me!). Please can...

Found one made by mattig whilst lookin for a few bits online and found a horizontally slated grill thought may interest a few folks...