Don't remember if it came with my Coleman or if it was an option, but there was an organizer accessory that was about 3 ft wide and hung from the ceiling to the bunk bed with storage pouches for gear and it was kind of like a giant shoe organizer. I never did use mine, but I think they mounted the clips it attached with just like you are describing.
I found a picture of one.I had them attached mine hanging behind the dinette seat at the rear bed so I wouldn't have to crawl through or around it to get into the bunk.