Crystal Reports for Rational Application Developer Designer Guide
Adding a Cross-Tab to an existing report
When you add a cross-tab to an existing report, you can provide a different view of summarized data for that report.
Business Objects, an SAP company
http://www.businessobjects.com/
Support services
http://www.businessobjects.com/services/support/
Product Documentation on the Web
http://support.businessobjects.com/documentation/