With WP Client Reports Pro, you can add a new section to your report that gives you and your client statistics about the backups of their website. This particular widget is more informational than functional because of limitations of the WPEngine API.
WPEngine makes daily backups during the early hours of the morning. These backups are stored for 30 days. Unfortunately the WPEngine API does not include a way for us to retrieve the status of backups and what their file size is. So this widget merely counts the amount of days and checks if they are within the last 30 days.
There is no set up needed if you are on the WPEngine hosting platform.