72 Swinger windshield clip install

I bought some windshield clips today to install my trim, they are a tad bit bigger than the old ones..no big deal.
Can these be installed with the windshield in? Does part of the clip fit under the rubber? I assume they screw into to metal around the windshield but I am not sure how the trim attaches. Does part of the trim fit under the rubber and snap onto the clip?
AL