Right click on the tab labeled Report 1 and select Add Report.
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Now there will be two tabs, Report 1 and Report 2. Double click on a tab to rename it to something more useful.  
​Please note that Report 2 is blank by default.  
Click the Templates tab on the left and drag and drop a Table onto the report.  Then, click on the Data tab on the left and drag and drop fields as needed.