Use the Insert Column Values dialog box to add column values to a URL. The left pane of the dialog box lists all of the tables, columns, and expressions defined in your query.
To add a column to a URL, select the desired column from the left pane. To select a column, you can:
For example, assume you had a report that contained sales information by region.
Using the Insert Column Values dialog box, you could build a URL that hyperlinks each region to a more detailed report on that region,
http://sales.acme.com/regional_sales_report?region_id=<##REGIONS.REGION_ID>
or to an e-mail address for the sales manager for that region.
mailto:<##EMPLOYEES.EMAIL_ADDRESS>