In order to do that you will have to manually add all labels for the XAxis, not only the "More" label. You can view our EmployeeSalesSummary video example for more information. In order to view the report implementation you can open our examples, which are situated in Start->All Programs->Telerik->Reporting Q3 2010->Visual Studio 2010 Examples->C#.
Best wishes,
IvanY
the Telerik team
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