Sort the details view by any metric

Currently the Details view is sorted by the number of visitors but it would be great if I can click to sort by any other metric too. For instance sort referral source by bounce rate. Currently this is only possible manually using the CSV export.

In this pages detail view, it would also be super useful to get the sum or averages for all the selected pages. For example, I would like to know what’s the total traffic on a page segment (by searching a URL substring), or the average time on page there.