show some kind of aggregated metrics for each super node in lineup (averages, min, maxes, etc.)

[JackWilb]

Kind of an interesting behavior. When aggregating a queried set, lineup does not show the extra columns that appear when a parent node is expanded

I think this is fine behavior. The supernodes don't have those columns so it would just be a column of undefined for each attribute. We could perhaps show some kind of aggregated metrics for each (averages, min, maxes, etc.)

Originally posted by @JackWilb in #368 (comment)