Go through the given illustration on opening a dashboard from the Manage options.
The users can open the desired dashboard into the designer workspace once they have created and saved it to a workspace.
Click the Manage option on the Designer homepage.
Select and click on a workspace from the list of Workspaces.
Select a Dashboard from the list of all the saved dashboards under the selected workspace.
Click the Open in Designer icon.
The selected dashboard opens in the designer workspace.
Please Note: The users can also open a dashboard in the designer canvas by using double clicks on the dashboard name from the list of saved dashboards.