Excuses for the repost, but I still hope somebody can answer this question? Is it possible to pass the parameters of an input dataset? For example: the user selects a dataset of the history. I want to pass to my wrapperscript the input parameters of that dataset (the information you see when clicking the small 'i' on a dataset in the history). For now I can pass the metadata of an input dataset. I write them out to an configfile below (Cheetah). <configfiles> <configfile name="metadata_of_input"> #for $k, $v in $input._metadata.iteritems() $k==$v #end for </configfile> </configfiles> On top: <command>mytool.sh $metadata_of_input $input </command> Is there something similar for input parameters? Such as $input1._params? (I have looked into the source, but could not track it down...) Joachim