Link to Element Feature in Composite Structure Dia

[PetPaul64]

The main idea of what I want to do is to visualize software IC's.
So I need a possibilty to specifiy the wiring of runtime components.

I've decided to go with the Composite Structure Diagram and to show the wiring by Information Flows between parts or properties.
(Lets say SourcePart of type SourceClass should be connected to  DestPart of type DestClass)

When I draw a SourceClass from the Project Browser to the diagram I can drop it as a part or property and specifiy the type of that part or property as SourceClass/DestClass.

This is shown in the diagram.
I'm also able to show the operation of Source- and DestClass through "Feature and Compartment Visibiltiy".

Now I want to establish a connector between these parts.
The connector-endpoints should link to operations of the Source-/DestClasses.

The "Link to Element Feature"-Dialog seems to be the way to go.
But it does not show any operation of the "Element Type" (SourceClass/DestClass).

Is this a bug?
Is there any other way to do this?
Are there other solutions to realize software-IC's?
 
Thanks in advance