Gregor, Thanks very much for your explanation. I had Googled a lot before asking the question, assuming that the list archives would show up. But perhaps they were buried in other results. I should have searched here first. I apologize.
I found your code for subclassing HierarchicalData, along with the correction for RESET from another poster. Thanks again for the help. -- Thanks, Tom Tom McNeer MediumCool http://www.mediumcool.com 1735 Johnson Road NE Atlanta, GA 30306 404.589.0560

