Need composite actor instance in actor tree
Currently, when you drag a 'CompositeActor' from the actor tree to the work area, you get a 'CompositeActor' CLASS actor rather than an instance. This is confusing since if one selects some set of actors and uses the menu 'Tools/Create Composite Actor', one gets an instance directly.
I think this is the only 'Class' actor in the tree. Note that Ptolemy has both a 'CompositeClassDefinition' and a 'CompositeActor' in its tree!