Start/end dates of memberships in the subscribers tab would make life easier for admin

Currently there is 1 default view under the Subscribers tab within the admin and the columns are set. This view displays the username and their email address. It would be beneficial and more informative to have the ability to view and sort the start and end dates of the memberships in this view. This would provide a snapshot view of expiration date(s). Currently I have to drill down into each username to see where each member stands.