Does anyone use XRT/Graph? If so, I was wondering if anyone could help
me with something. I want to display two bar charts on the same graph
using two data sources. This I can do, but it doesn't appear to have
separate resources for setting different bar cluster widths for the two
bar charts. There's only one setting that controls both graphs
(XtNxrtBarClusterWidth). Does anyone know a way of doing this?