Profile_User::getRelationMassiveActionsSpecificities PHP Method

    static function getRelationMassiveActionsSpecificities()
    {
        global $CFG_GLPI;
        $specificities = parent::getRelationMassiveActionsSpecificities();
        $specificities['dropdown_method_2'] = 'dropdownUnder';
        $specificities['can_remove_all_at_once'] = false;
        return $specificities;
    }