Category: Impersonate Member
Entering an email address in this field will allow you to impersonate that member. This option is intended to be used by admins to help troubleshoot account questions from members, such as online registration trouble or account information trouble.
Security Rights... Using this option to test an administrator's security rights will not be 100% accurate. Although it will provide some indication as to what features they may or may not have access to, to a degree you are still logged in with your original admin role simply impersonating this user.
To test an admin role accurately, log out of the site completely and login as that user.