1) Log in to your master account
2) Select the client you would like to view the settings for
3) Click "Settings" in the upper right hand corner
4) Click "Account Settings" from the left hand side settings navigation
5) View/edit the name on your account, view/edit the company name (that shows up in reports), view/edit the website associated with your account (this is the site Moz data + ranking data pull information for), view/edit your username or password from within these settings.