- $this->add('select', 'group_id', '', $groupSelect, TRUE, array('class' => 'crm-select2 crm-action-menu', 'placeholder' => $msg));
+ $this->add('select', 'group_id', '', $groupSelect, TRUE, array('class' => 'crm-select2 crm-action-menu action-icon-plus', 'placeholder' => $msg));