The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
dCollapse
Collapse
In outline view, to make subheadings and body
text below each selected heading invisible,
allowing you to see the outline or structure of
your document at a glance. See also: Expand;
Outline view.