Program: Snoopy
In the first case, if I tried to delete the Course Transition from the top level, Snoopy crashed when saving the model.
In a new model using Course Place, when I removed (the first) place in the lower layer, I crashed Snoopy.
Is this pilot error? The Help file wasn't much, so I'll poke around the web site for docs on hierarchical PN.
Read well and prosper Michael Corning Chief Data Scientist Ubimodo, Inc.