You can find User information in the "User" section of the site manager. You can edit the information simply by typing in the fields.
Username: Name of user.
Login Name: User name for logging into Server Manager.
Description: One-line description of the user. This field may be left blank.
Enabled: Select the checkbox to enable the user to log into Server Manager.
Role Name: Select a user role that will be associated with this user.
Password: Enter the password for the user.
Retype Password: Enter the password again.
Require Password Change On First Login: Select the checkbox to require the user to modify their login password during initial login to their Site Manager.