Sort Custom Fields when they are added as columns on a Case Listings Dashboard

This used to be a feature where we could sort (A-Z or Z-A) Custom Fields Columns in a Case Listing Dashboard. This feature was extremely helpful in organization of our active cases on a more granular level than permitted by the fields available within Passare. Returning this feature is essential to our organization of cases. Improving this feature by allowing a custom sort much like is available in Excel would be ideal.