Subcategories are the categories within a Category. They are used to further organize materials into narrower content structures.
To create a subcategory, click on the main category that you want to create a subcategory under.
This will take you to a page that allows you to add subcategory content. The options for content in a subcategory are: category, media file, or link. To add content, click "Add Media," or “Add Link”, this will prompt you to select a file or add a link.
To create a subcategory, simply click "add category", then choose the Parent category and name your subcategory. Make sure to “Save” after each addition to the category tree.
Repeat this process to create multiple subcategories within a category.