The Web Dashboard allows you to connect a dashboard to one of the existing data sources or add these data sources to the dashboard's data sources collection.
When you create a new dashboard, the New page of the dashboard menu is invoked and allows you to select the existing data source from the list.
This action creates a new empty dashboard that is bound to data. Now, you can add dashboard items and bind them to data.
You can add an existing data source to the dashboard. To learn more, see Manage Data Sources.