The example above has been simplified to illustrate the issue. But my real-world situation is this: before the 1st multireport command, I check against a lookup cache. If the cache has a match, show that set of results (this is the 1st subquery of the 1st multireport). If the cache has no match (2nd subquery of the 1st multireport), then perform a custom command to retrieve the data, then save to the cache and display the results. However, the list of fields to save to the cache is different than that to display, so I want to use another multireport to fork two branches -- one for saving a list of fields to the cache, and another to display a slightly different set of fields to the user.