From quite a technical description of what the author was looking for without an actual use case, it's unclear whether the standard functionality of configurable parameters (promts) of a stored process Process Node fulfills what they need to achieve, or not. It's kind of pops up (when the user double-clicks at the process node), and the response is being processed in SAS code (when the node or campaign is executing),
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Dmitriy Alergant, Tier One Analytics