Generate application-level coverage reports for every application in your system and in your application stack, and then merge the most recent reports to a single report, to gain a consolidated overview of test coverage for all your top-level or built-on applications.Insight from a merged application report helps you avoid creating duplicate tests for rules that are used across multiple applications.
Switch to the main application that you want to use as the baseline for the merged report. See Switching between applications in.
In the header of Dev Studio, click.
Click the Application level tab.
In the Coverage history section, click Merge reports.
Enter the title of the merged report, and then click Next.
In the list of the most recent reports, select the reports that you want to include in the merged report, and then click Create.
Close the Merge confirmation window.
Result: Dev Studio automatically adds the MRG_ prefix to every merged report to differentiate them from standard application-level coverage reports and to facilitate finding them.
Open the merged report. In the Coverage history section find the merged report that you created and click Show report.
To open a report that is included in the merged report, in the Merged reports section, click the report name.