I wish to be able to control the users list suggested in the “To” drop down in new message creation.
I see there is an action hook named fep_users_ajax_arguments for this purpose – is that correct?
Looking a bit deeper (in the code) I see that the $args contains a list to exclude users only.
I wish to be able to generate the users list myself, hence to have only an “include” list, so basically I include only the users that I wish, based on my functionality.
How should I do it? (exclude all, include only mine).