thomaslcq on "[Plugin: Email Users] Email to user meta field"

I'd be interested to have some filter/hook so I could provide custom lists/groups to the plugin, would that be possible? That would be something like

apply_filters('emailusers_customgroup','mycustomgroups')

function mycustomgroups() {

//build my custom list based on their meta "interest"
$groups = array(
            array(name=>"Group1", users=> array(id1,id2,id3)),
             ...
             )
return $groups;
}

(raw php code, unchecked, but pseudocode :)