Information Flow Realized in messages

[qwerty]

To show information items flowing at an association you need to combine a connector/association with information flow(s) via Information Flows Realized in the advanced context options. That will give you a filled triangle showing the item(s).

Now in sequence diagrams you seem to be able to do the same. The Advanced/Information Items Realized is available. You can also attach information items and this results in a dashed connector free flowing near the message. But each time you try to enable the flow again via the context it does not change anything.

I thought it would be a nice feature to show an information item flowing as message instead of an operation of the receiver. However, I haven't seen anything the like in Superstructures. So the EA implementation seems to be a bug.

Thoughts?

q.