You can follow any one of the below mentioned methods to add a chapter.
To add a new chapter:
Method 1
1. Navigate to the manual.
2. Then click + button next to the sublevel.
3. Click Chapter.
4. Enter a name and press Add.
Method 2
1. Navigate to your article, then click New Chapter in the bottom-left corner.
2. Enter a name, then click Add․
Method 3
1. Navigate to your article, then click the
Edit icon (

) to the right of the article view.
2. Click Choose Chapter in the top-right corner.
3. Click New Chapter.
4. Enter a name, then click Add.