And look how GUI it is... Ron emailed me that he'd posted here asking for this sort of app, and, wouldn't Jung be proud, I'd just made one.
It's a Java app, so you'll need a virtual machine somewhere on your box to run it. For those of you who hate readmes, download this, unzip the jar, and take a command line to the directory where you place the jar. Type this...
java -cp grpxRad.jar frmGrpxRad
... and voila.
URL:
http://homepage.mac....ctari/grpxTool/
Hope that helps someone. One afternoon's coding right now, but will hopefully get better. Email me if you need more help or a Java 1.1.x version of the app (like for Mac Classic).
Ruffin Bailey