Currently the Normal pane has an icon in the top left that allows you to toggle between the default view, which shows everything, and the outline view, which only shows items with children, and doesn't have any of the formatting in the default view. However, it's not immediately apparent that that's what's happening.

The items in the outline view are formatted like items without children are in the normal view, so its not obvious that only items with children are showing, or what the function of this view is generally.

I suggest that you change the text that appears when you hover over the icon so that when you are in default view it says something like "Open outline navigator" (the default view is an outline), and when you're in outline view, it says something like "Return to default view".

It might also help to have the outline view text be bold, so that it matches the conventions used in the rest of the document, but I can understand why you wouldn't want an entire list in bold.