Using an existing Use Case as a Business Process Diagram's Task

Hi,

In this tutorial: http://www.visual-paradigm.com/tutorials/from-business-process-to-use-cases.jsp, it is shown how a Use Case can be created from a BPD Task (Related Elements > Create Use Case…). I would like to know if it is possible to go the other way. e.g. Create a BPD Task from an already existing Use Case. Is this possible? And if so how?

For example, I can drag-n-drop an existing Actor into a BPD and, as a result, a Pool for that actor is created. I was therefore expecting that, if I then drag-n-drop a Use Case belonging to that Actor into that Pool, a BPD Task would then be created?

Thanks in advance,
PM.