Hole

Here is how I dealt with the holes for the panel supports. I triple stitched using a zigzag stitch on both sides of the opening.
This cover is for the center dividing wall and fits rather snug. I can see this being a problem on the larger walls. To compensate and save myself a mountain of headache on the road when I'm alone I will only stitch the front edge and the top together. The back edge will be secured using ties I cut from the awl edge of the extra fabric. Will post new pics later. And once I get my new drawing tablet working I will draw a few schematics to help explain for all of my visual learners:-)