Retrieving messages in Group using MQ adapter

What is the procedure for retrieving the messages PUT to a websphere MQ server queue as a Group? Can i retrieve them as a Group(as an array of messages) out of the box? Or do i have to code some kind of logic based on the MsgFlags values?

Hi reachyeruva /All,
I am also looking exact requirement, please tell me if you/some body have achieved this & how to do this.