With Nimbl you can sort your top level categories. This will then in turn show on your chosen template in the sorted category list. If you do not sort your categories it will be sorted alphabeticelly.
1. HOW TO SORT YOUR CATEGORIES
From the Nimbl Portal, under the STORE tab, click on PRODUCTS to open the drop down and click on the CATEGORIES button.
In the top right click on SORT CATEGORIES
A new page will open with all your top level categories.
Drag the categories in the order you want them
Click the SAVE button to update your sort order.
Your categories has been successfully sorted.