You can change the display order of your categories by clicking and dragging the category up/down in the list of categories.
Categories are listed in the library according to this order.
To Change the Display Order of a Category
1. Click Courses from the top main menu.
2. In the category section located on the left side of the screen, select the category you want to reorder and click and drag up/down.
3. Release the category in the desired position.