I have a very simple task: a taxonomy field to show in admin a list consisting from only few terms of the taxonomy, not all. So far I wasn’t able to find a filter by which it would be possible to change taxonomy request. Is there any way to achieve this?
Using this filter, you can customize the $args. These $args are later used on line 238 in the function wp_list_categories. If you check out this function on WordPress, you will see that there are some params which ‘exclude’.