How does the 1/4 vent glass secure in the retainer ?

Also how does the door glass secure into the lift channel

I have purchased all new stuff & cannot remember if glued or pushes into some sort of seal

Cheers in advance

 

The 1/4 wing is held in by 3 screws on the outside of the door and then one bolt behind the door panel. Loosen those and the whole frame and all will be loose.
The main window is held in a slotted track by one plastic roller.
I guess thats what you wanted to know.Are you putting in new seals or changing out glass...