[Zope] Return a variable number of objects / ZGDChart

Hi, I am generating a number of lists in this way: It is something like this: <dtml-in "[0,1,2,...,n]"> <dtml-let counter=sequence-index lista="'temp_data'+_.str(counter)"> <dtml-call "REQUEST.set(lista, ['content'])"> </dtml-let> </dtml-in> I am trying to return this variable number of lists. <dtml-return "(x, y1, y2, y3,...., yn)" > where y1...yn are the lists that I have to pass to a ZGDChat object. The matter is that n is not fixed, so it can be any number and I cannot see the way of sending this "variable length" sequence of objects. Any ideas? Thanks for your help Belen