Ahoy. "loci-workspace" is a new module in the CVS. It is a very simple pygnome application I made/modified that is a bit like the mockup I sent earlier, without any graphics. I think you'll be surprised at how simple the source code is. Check it out. Run it under Python: $ python loci-workspace.py What was in loci-gui will be incorporated into loci-workspace. Cheerio. Jeff -- J.W. Bizzaro mailto:bizzaro at bc.edu Boston College Chemistry http://www.uml.edu/Dept/Chem/Bizzaro/ --