Honestly I thought a “hack”
was a bad carpenter- in my day we called it a good idea.
So, for a 3rd hand installing the side windows, lift it up for more reach to the zipper, stick it to the velcro and then move on to the zipper, start it, slide the door surround and tub channel plastic in , pull it loose and zip it up. This keeps it from flopping around as you try to start the zipper.
was a bad carpenter- in my day we called it a good idea.
So, for a 3rd hand installing the side windows, lift it up for more reach to the zipper, stick it to the velcro and then move on to the zipper, start it, slide the door surround and tub channel plastic in , pull it loose and zip it up. This keeps it from flopping around as you try to start the zipper.