Ordering the TV categories within a template

HI, i want to change the ordering of the categories of my TV groups within a template. If i’am correct MODX orders the TV categories in alfabetical order. Please see attachement of the situation.

In short how can I change the order from cat A, Cat B, cat C, cat D into for instance cat B, cat D, cat A, cat C?

(PS. ordering of the TV itself is obvious by assigning a "sort order" index, but i could not find anything for the TV category)