Create the category
To create a new category, just click on the left in the back end in 'Content' on 'Banner'. In the main area click on the button 'New category'.
There, enter the name of the category. The front end module will later use this name. Then you click on "Save and close". Now you can see the category overview. By clicking on the pencil in the line of the category and repeated clicking on the pencil in the head of the category you return to the settings of the category.