Need Help guys

[e30m3power]

Hey guys
just picked up a "Rear Drip Rail" 54-12-1-837-094 for the sunroof.
i need help installing it, is there a trick that i need to know.

i can get it on the track but im not sure if its in the right position. does the drip rail slide back and forth or is it still?
im hoping someone can help me here.
TIA
Joey

[e30m3power]

cmon guys.....can on eof you at least just check your sunroofs to see if the drip rail behind it moves with the roof or does it stay still?
thanks
Joey