If not empty, this allows you to format the containing markup of this field and its selected values. This offers greater flexibility and customization but you must use the <b>{$value}</b> placeholder for chosen field values to be displayed. Optionally, you may also use <b>{$title}</b> - the field's title, <b>{$description}</b> - the field's description, and <b>{$fieldId}</b> - the ID of this field (<span id="FieldId">{fieldId}</span>).