From the Tools menu when working in any tab, select Dashboards >Delete Dashboard Template, OR Right-click on the dashboard template node in the Logical tree of the Operations tab and select Dashboards > Delete Dashboard Template, OR Right-click on the Logical node in the Operations tab and select Dashboards >Delete Dashboard Template.
If initiated from the Tools menu, select a dashboard template from the list to delete and then confirm by clicking OK. OR If initiated from the dashboard template node, confirm deletion in the dialog box by clicking Yes.