Dashboards once created can be edited as per requirements. Changes to the existing dashboard makes sense if some existing reports are to be removed from it or few new reports are to be added to it.
How to edit dashboard?
Deleting reports from dashboard
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In the dashboard section, open the dashboard you wish to modify.
Click on the blue button stating 'add report' appearing on the top right corner. A pop up menu shall appear on the screen.
choose the report you wish to add and then click on add button.
Your report is successfully added to the dashboard.