When you're editing a document, the navigation / table of contents is displayed as abstract bars on the left side of the screen:
This is so it's not a distraction and you can focus on the content on the screen. If you hover over the bars, you'll see the actual text:
To move any section or policy, just click the one you want to move within this view, hold, and drag up or down. Once you release the mouse button to drop the section/policy, your view will update to reflect the new order.
Note: Be careful when moving an entire chapter. Currently you can only move one section or policy at a time. This means moving an entire chapter full of sections/policies can be a chore. It's also very easy to lose your place. If you need help, please contact us. We do plan on improving the way this works in the future!