menu 

Click on you username we it says "Hello [You Username]!"   top right of the window

Screen Shot

Actions

LinkDescription
Change your passwordselect this link to change your password.   This changes only your password for the UI access.
Phone Number (Add)User a mobile phone number as this is used for Two Factory Auth where you will be set a text with a code for entry into the UI at login.  If you edit or add your phone you will be sent a text for a code for confirmation.  if you do not enter this code you phone number will not be confirmed
Email Address (Change)Allows the change of you email address.   You will be sent a email for confirmation - your email address will not change until it is confirmed.
Two-Factory Authentication (Enable)This enables two factor authentication - the process will not work if you do not have a confirmed email address or phone.