Not able to edit sub articles

In the screenshot above, how can you access the circled area? I am unable to see those sub docs at all, and have no way to edit them after adding them. In addition, I don’t have the view from the other screenshot where all the docs are listed like normal pages.

I really really love the plugin, but if I can’t edit existing docs, it’s not very useful ??

The page I need help with: [log in to see the link]