1. Click on "Settings" icon.

2. Select "Asset" bar.

3. Choose from selection to be filled up.

4. Select "Categories".

5. Click "+Add" to add a new categories.

6. For asset, select "Asset Category", 

7. Name the category.

8. Choose the parent category (if any).

    To choose a parent category, first you have to create the parent category. Only existing category will appear inside the list of Parent Category.

9. Click "Save" to upload.