How to: Collapse and expand outline.
Solution:
In 'Outline' view, use the 'Collapse Selection' and 'Expand Selection' toolbar buttons on the 'Outlining' toolbar, to collapse and expand sections of the outline or the entire outline.
1) Make sure the presentation is in 'Outline' view by selecting 'Outline' from the 'View' menu.
2) To collapse the outline:
3) To expand the outline:
a) Select the slide or slides to expand.
Select slide bullet
b) Click 'Expand Selection' on the 'Outlining' toolbar. (The selected slides expand to include the paragraph text.)
Expand Selection