What is the Roster tool?
The Roster tool displays the number of site participants along with their names, photos, and profiles.
Note: The Roster tool does not allow instructors or site owners to add or remove participants from a site. To do this, project site owners must use the Site Info tool to add project site participants. To add users to a course site, instructors must place an enrollment request with ITRS.
To access this tool, select Roster from the Tool Menu in your site.

Note: If you don't see the Roster tool listed in your site's Tool Menu, the site owner may have chosen not to use it.