public function onFakeSubmit(&$form, &$data) {
        if ($this->useMultiRowForm) {
            //Check if the insert button was pressed and act upon that
            if ($this->hasNew() && isset($data['insert_button']) && $data['insert_button']) {
                    // Add a row
                    $model          = $this->getModel();
                    $mname          = $model->getName();
                    $data[$mname][] = $model->loadNew();
            }
        }
    }