I have two issue with dataflow programming languages: 1) They generally do not support batch processing. In the past, when I needed batch rename variables in a

I have two issue with dataflow programming languages: 1) They generally do not support batch processing. In the past, when I needed batch rename variables in a dataflow, my solution was to export the flow into an XML, do the batch rename in a text editor, and import the XML back. 2) They generally do not support macros (operators, which would generate new operators). As a workaround, I was using Python scripts to generate the XMLs...