How to change the order of a category in the product list?

In order to change the order of a category in the product list you need to access your Back Office, you select Products and then Products again. 

Once you are in the category list if you pass the cursor over the name of the category at the end of the name you will be able to see a black icon.

If you click on it you will be able to move the order up and down. Please notice that it has to be done from a computer not the ipad.