Replacing window name in a patcher

Hi all,

I first apologize for this question, since I've to admit I moved to Max5 only today.. I'm debugging some complex patches I had in Max4.6 version.
In Max4.6 it was possible to replace the window name with the "patcher xyz" message to the thispatcher. It seems that this message doesn't work anymore in Max5. Is there any other way? I have to replace the name of windows indexically depending on the number of istances I load in my interface.

Thanks a lot,

Stefano