If you add an object that you later decide that you do not want, then you can delete it. Keep the following points in mind when deleting objects:
When you delete an object that contains other objects, such as a column or section, you also delete all objects in that container.
When you delete a column, other columns on the page might resize automatically to maintain column alignment.
For objects that are saved in the catalog, the object is deleted from the dashboard page only. It is not deleted from the catalog. (Users with the appropriate permissions can edit the contents of the catalog. For information, see Chapter 13, "Managing Objects in the Oracle BI Presentation Catalog.")
To delete an object on a dashboard page:
Edit the dashboard. For information, see "Editing Dashboards."
Navigate to the page that contains the object to delete.
Hover the mouse pointer over the object in the Page Layout area to display the object's toolbar and click the Delete button.