Hi Scott, I'm no expert but it sounds like you may need to try the transparent box trick at the top of your following page and place the new box of scrolling type into position where you want it to start. That's IF I understand how to set this stuff up. I'm still waiting for a solution to the empty Mag+ tool loading in my ID6. It also sounds like you may need to "link" 2 verticals in to become a spread if you want to utilize horizontal swiping in a story. You find this feature by going to the Verticals menu and labelling your vertical the same, but adding a 1 or a 2 in the small box to the right of the file name. That tells Mag+ it's a spread. Then you can build your first part of the vertical and the second part.
Hope that helps.