protected function _getMultiFieldsFieldset()
    {
        $fs = new Kwf_Form_Container_FieldSet(trlKwf('Paragraph {0}'));
        $fs->add(new Kwf_Form_Field_Checkbox('visible', trlKwf('Visible')));
        $fs->add(new Kwf_Form_Field_SimpleAbstract('edit'))
            ->setXtype('kwc.listeditbutton')
            ->setLabelSeparator('')
            ->setData(new Kwc_Abstract_List_FormWithEditButton_NoSaveData('id'));
        return $fs;
    }