multiple reports in one viewer - telerik reports

My requirement is to view several reports in one report viewer as follows:

In order to view multiple (4 in this case) reports in one report viewer:


            ReportBook rb = new ReportBook();
            rb.Reports.Add(new SauOgrisReport());
            rb.Reports.Add(new SauOgrisReport());
            rb.Reports.Add(new SauOgrisReport());
            rb.Reports.Add(new SauOgrisReport());

            ReportViewer viewer =          (ReportViewer)this.ReportContent.Controls[0];

            viewer.Report = rb;
            viewer.RefreshReport();