for the first question, can you just sum the data and plot it that way?
for the second, a simple way is to plot the data as a stacked chart and
have the different years be diferent data sets with 0s for the times not in
that year.

"Jack Black" wrote:

Using Excel 2k3...

Ok, I have a basic set of data, detailing cash values by month, for a period
of several years. Here's what I'm working toward, but haven't been able to
get it to work.

I'd like to be able to group a series of values (for example, June of one
year through May of the next) on the chart as a SINGLE bar. As another
option, I'd like all bars of a single calendar year to be the same color,
even though they're different data elements...

Thoughts? Thanks!
Jack