Can I add a connector to a Diagram pierce?

[Hermes]

Hi all,

Can I add a connector with an ending setted to a Diagram pierce?
Is it possible in EA?
eventually can I reference it in some indirect way?

Actually I have discovered UML Combined Fragments, and My addins works with them.

However since this UML construct introduces an (unwanted) interaction semantic into the referenced diagram, I would like to check if some other ways exists to link diagram pierces.

I need this feature for a Traceability add-in support.

What do you think about?

Thanks,
/Daniele