Hi Christophe,
your idea ist good :-)
Now it runs as i need this workflow.
In short for other readers.
I have a WF "A" that returns Array of Strings (lets say retArray). i wrote another WF "Wrapper_A" with input parameter "inArray" and and output parameter
"outArray". This WF calls the WF "A" and has an Script element (only outArray = inArray.concat(retArray)).
In the workflow that shoult be iterate over the WF "Wrapper_A" i initialze a attribute "allRetArray" with empty Array.
in the foreach element i bound input parameter and output parameter of "Wrapper_A" to this attribute.
So i get the returned Arrays of all called WF iterations.
I hope its possible to understand my bumpy english ;-)
best regards,
Mike