Updated 5/26/2020:
I have a divider between the layout and the Staging Area. When I originally installed the backdrop up on the divider, my intention was to extend it all the way to the ceiling. I prepared the area to receive a backdrop extension. All that got pushed to the back burner as I tried to get the bridge area ready for the NMRA Mid-Central Regional Convention at the end of May (which was, of course, cancelled due to the COVID-19 pandemic).
So now, with some time on my hands awaiting parts, I started looking at this again. I was about to pull out some 10' sections of blue sky backdrop (from the original order to RailroadBackdrops.com), when my better half decided to inspect the area. She had a brilliant idea - just paint the area above the Weirton Steel backdrop the color of the wall. It would match the rest of the area and there would be no reason to do this extra work. So that's what I did!
It will get two coats of paint and then I'll pull the protective masking off and declare victory!
George