side glass anti rattle filler

Morning.....So now I have the glass and all parts removed from the doors and yes I will be greasing the necessary components. However the question I originally asked has not been addressed. I need someone who is familiar with the factory installation of the side windows to chime in for clarification.
What I am wondering is the anti rattle material, was it fixed to the glass so it travelled up and down with the window in the front vertical channel or was the anti rattle material secured in the channel so the glass slid in the material. The one I just removed had the material fixed to the glass and was a mess.
If the anti rattle material was fixed in the channel who in the after market parts world carries this?
Thanks for any help.
Ric