I am trying to create an interactive menu in Microsoft Excel 2000 to
summarize environmental samples.  I have 3 cities, with sampling done
once per season (4 seasons), with 4 types of samples done per season:

I want the user to be able to pick (using buttons) the city or: the
date or: the sample type, and have displayed only the results that
exceed the legal limits.

How do I create / define these buttons so that this will work? I need
to know what commands to use to set this up.  Any examples / info
would be great, thanks.  I can't seem to find the command to establish
these multiple on / off filters.