You use the tabs of Outline Viewer to view (but not modify) outlines:
Outline—Displays a tree view of the outline
Properties—Displays outline properties, such as generation and level names and attribute settings
Because Outline Viewer loads members into memory only as you need to see them, it provides information relatively quickly. You can customize Outline Viewer to display only selected information.
Note: | To modify outlines, you use Outline Editor. |