Adding dynamic data to barcode data 1 Select the barcode. 2 In the Properties panel Barcode category, select Data. 3 In the Modification text field, click the browse button. 4 In the Data Selection dialog, either: – Browse to the field or variable. – Enter an XPath. Note: If you use an XPath expression, enter it directly in the Modification text field. You can remove or edit the modification later by selecting the Modification field in the Properties panel and removing or editing the data.