I fully agree that the roll up feature of fences could be better. I would prefer "one click" open / close myself.
Another issue I have is that the header moves down with the rolled down fence meaning you have to chase down the new header position to close the rolled up fence again. It would be soo much easier if the header stayed put so I could open / close faster.
Hopefully in the future Stardock refines the roll up feature
With that said, I actually use the page feature for my folder portals. I just leave my folder portals all left open and aligned for quick access. Switching pages left or right is a lot more quick and the folder portals are still hidden since the open portals are on another page.