Thanks, I thought it might be for a handle of some type but I'm not sure if mine is supposed to have one there. If I have to make something I will but if they cut the glass wrong I want to fix that problem. The middle windows are both flat across the bottom and have a handle attached to the back edge of the slider. Seems to me the back ones should/could be the same.
I've visited the bolt a number of times while collecting parts to get started, lots of good information here. Hope to share as well as learn.
