Ready to install windshields, any suggestions

Ready to install windshields in my 72 dart. I have the glass, gaskets, and urethane windshield adhesive in a calk gun tube. Any tricks to getting them in? I was told that the front windshield you put the gasket in then the glass and the rear goes in all at once. Any tips or suggestions are helpful.

I have always put them in with spray silicone and a nylon rope. Never used and goop on a gasket car but always used ne gaskets. Been a while so maybe I am out of date on the way things are done.