Hi!
I do not get an example with DCRTFocusable. What does this interaction do? I tried the following and it does not seem to do much.
-=-=-=-=-=-= b := RTMondrian new. b shape rectangle width: #numberOfVariables; height: #numberOfMethods. ns := b nodes: RTShape withAllSubclasses.
es := b edges connectFrom: #superclass. es @ DCRTFocusable. b layout tree. b -=-=-=-=-=-=
Alexandre