I saw that and I wasn't sure how tied to that use case the general idea was. But that makes sense. We are actually working on histograms; when we add them, they will be in Analysis Workspace only (just FYI). 

I think this is actually available now, using the new calculated metrics features that we added in June. Try creating a metric defined either as Count Rows(), which does not take any arguments, or use the Count() function and set the argument to the relevant metric (Page Views, or Product Views, or ...

Great suggestion, @michael-jet. We are definitely planning to do this, we just didn't get a chance to add it before the release last week. 

For anyone who voted on this issue, can you add a comment on this thread about how this would impact your business (and your ability to drive your business using Adobe Analytics)? The use cases will help us with our research in this area. Your help is very much appreciated. Thanks!

We are considering some approaches to integrate Adobe Audience Manager with Adobe Analytics to address this need.

@michelleg: There are definitely things we can look into.

To be clear, "date last used" would only go back to whenever it got implemented, as we are not currently tracking the date when a segment was used. 

We are planning to move away from Flash-based visualizations as you are already seeing in Analysis Workspace, Anomaly Detection, the Real-Time report, etc. 

Good suggestion. Thanks for submitting. We will keep an eye on this.