The Overview editor displays the contents of the message set object that you select in the Outline view so that you can view and change this object's most common properties. The Overview editor appears when you click the Overview tab in the editor area. The navigation buttons and links on the toolbar allow you to move back and forth between different objects. In the Overview editor you can make the types of change listed below:
To edit any of these values, select then click the appropriate field in the Overview editor. Depending on the type of field, this either displays a drop-down list or enables the field for direct editing.