Unless I'm not doing it correctly, I don't see a way to be able to filter your data by event / calculated metric values.
I'm having a problem that I'm having to take outside of adobe right now but I feel could work in workspace if this was possible.
I have a list terms that I want to filter out by a particular benchmark or average value so I only see terms that are performing worse than the benchmark given. If I could apply a filter where "event x < benchmark" but at a total view and not a hit / visit / UV level.
This would then only show the relevant rows of data where someone could come in and easily action.
I know you can do workarounds using calculated metrics to give a certain view but doesn't provide the view that I'd share to business users, which needs to be simple to use.