- login to FASO Control Panel
 - click gear icon (top right)
 - click Account Settings
 - click Change Your Username
 - enter new Username in the box
 - click Save Changes
 
Only letters, numbers, underscores, and dashes are allowed.
Must be at least 4 characters in length.
Cannot exceed 50 characters in length.
This will also change your system domain/Subdomain, which is based on your username:
username.faso.com
Please see this FAQ for more info: 
Username and FASO System Website Address Explained
05252020