Many drop down category menus

Hi,

Your plugin works perfectly as described, however I need many drop down category menus not drop down tag menus. So I tried the following code
——————————————————————
add_action(‘init’, function() {
register_taxonomy_for_object_type(‘category’, ‘attachment’);
});

add_action(‘init’, function() {
register_taxonomy_for_object_type(‘media-category’, ‘attachment’);
});
———————————————————————–
Result: only one drop down category menu. Then I tried different ways but I could only add many drop down tag menus and always only one drop down category menu.
So how can I add an additional category menu ?
The advantage of a category menu is that it shows a list of selectable categories when I edit an image and the tag field does not show anything, that is why I want an additional category menu.

Thanks