Metrics and reporting tools about your Umbraco Back Office Users, Groups, and Permissions
This plugin for Umbraco 8 will create a new tree item in the Settings section of the Umbraco Back Office. It offers a variety of views of the your Back Office users, groups, and content permissions.
Umbraco Reqs: This package is only for version 8 of umbraco, support for previous versions isn't likely but I do plan to suppport v9 soon after it's official release.
PM> Install-Package azdyrski.Umbraco-User-Reporting