Hi, Naveen.
It's interesting what you said. Could you, please, look at the similar discussion http://scn.sap.com/thread/3390635 and tell is it possible to implement the discussed task, because according to the discussion we can use at least two techniques to implement it — AET and structure appending, but regarding to your last comment at least the first way (AET) is not imposible. So, what about the second one?
Thanks.