You can change the nested report that is used. For example, you may work on several versions of a nested report and need to update the version of the nested report that the composite or base report uses.
To change the nested report to a different report:
Select the nested report in the Design view.
In the Properties view, General property page, click the button next to the Report box.
Select the report you want to use, and click OK.
The name of the report that displays in the box in the Design view changes to the new one.