The public issue tracker system has been migrated to a new way of tracking items and gathering feedback, the Feedback & Ideas portal. I'm afraid this particular feature has not been implemented yet, but you can follow our progress on the matter here.
Let me know if you have other questions.
Check out Telerik Analytics, the service which allows developers to discover app usage patterns, analyze user data, log exceptions, solve problems and profile application performance at run time. Watch the videos and start improving your app based on facts, not hunches.