1. Set the required directories hierarchically, such as Title I and Title II, which we often use. After these settings are completed, a complete directory can be generated.
2. Insert-Page Number-Bottom of the page, and then you can choose any style to set the desired style.
3. Please insert the table of contents before setting the title. Generally, there are two types: manual and automatic. It's best to choose automatic. After selection, the settings directory will appear at the top of the first page.
4. In the View-Navigation Pane, you can see the related directories on the left, where you can edit the level. This solves the problem of how word sets the navigation directory.