If the logged in user is a regular user (not-admin), clicking on "users" from the main menu will display the user profile screen. If the user is an admin user, the list of users, and links to new, edit, delete etc, is displayed. If a user is not an admin, it means that the access-rights of this user is set to anything other than "super-user", or user group admin. A user can manage a group of users, if he/she is given access to a user group.