Currently, the order of how the Categories appear in the dropdown Category field is when the fields were created first in the list view. 

The only option to rearrange the category options in the field is to remove the category options and then re-add them in the order that you want them to appear. 

Looking for the functionality for the category options be able to be rearranged without needing to remove the category options and re-add them in the order that you want them to appear.