First, go to the News Categories section in the Top News Internal menu of your WordPress dashboard. There, you need to add a new news category.
For that, enter the fields Name, Slug, and Description of the category as shown in the screenshot. Remember that the slug name must be in lowercase. Then, you must click on the Add New News Category button to save the category.
Now, you can see the list of the added news categories on the right side of the same page.