See the Understand the Structure of Texts guide

1. Open your text
2. Find the section of text for which you want to create a child
   • Note: click on the section title in "Contents" to navigate to that section
   • Note: see the glossary definition of Child Node
3. Click on the plus sign
   • This plus sign is located under the section title

   • The "Create Book page" window will open

4. Type the new section's title in the "Title" field
5. Type the new section's content in the "Content" box
6. To add metadata to the section, click Metadata: 
   • Note: typically metadata should only be used for the root node of a text

   • The "Metadata" page will open

7. Add authors, publication years, descriptions, and search terms if necessary
8. Click Book outline
   • Book outline is located on the left sidebar

   • The "Book outline" page will open

9. Verify "Book" and "Parent item" 
   • "Book" should be the title of the text to which the new section belongs 
   • "Parent item" should be the section you chose in step 2
   • Note: see the glossary definition of Parent node
10. Click on the "Weight" drop-down menu

    • "Weight" options will expand

11. Choose the importance of your section relative to sibling sections
    • Note: sections with higher weights will be listed first
    • Note: see the glossary definition of Sibling Node
12. Click Save 

    • The window will close

    • Your section will be added to the parent page