See if this article helps:
http://gregmaxey.mvps.org/Toggle_Data_Display.htm.
--
Stefan Blom
Microsoft Word MVP
"drako" wrote in message
...
I am searching for an application -- either Word or another -- that allows
for collapsible headings inside an outline. I have seen this
functionality
often on web pages, where an arrow to the left of a heading is clickable
and
this click results in either displaying or hiding the sub-section
contents.