The question categories page shows the question category details with Category Name, Category Description, Category Slug and Category Count. And you can add your new course category with Add New Question Category button with the following fields.
Name – You can enter your category name is how it appears on your site.
Slug – You can enter your slug name. The “slug” is the URL-friendly version of the name. It is usually all lowercase and contains only letters, numbers, and hyphens.
Parent Course Category – You can assign a parent term to create a hierarchy.
Description – The description is not prominent by default; however, some themes may show it.