Hi David and others, Each OBNode understand the message definition. In the first version of OB, this definition method is supposed to return an instance of OBDefinition or one of its subclass. I saw a way to have a graphical object instead of the text pane. What is the trick to achieve this? Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. _______________________________________________ Moose-dev mailing list Moose-dev(a)iam.unibe.ch https://www.iam.unibe.ch/mailman/listinfo/moose-dev