If you would like to view or update your profile information, click on the link with your name at the top right of your Quatrix account. It opens the form displaying your name and email, user class in Quatrix (pro, associate or jailed), used and available storage and all Quatrix accounts with the active one on top.
By clicking on the Manage Profile link below the list of accounts you'll see two tabs: General and Security. The General tab allows you to update your personal information (name, language, email signature), except the email that can only be changed by your administrator or the account owner.
Quatrix is available in two languages: English and Chinese. Users can make language adjustments on the General tab (see the screenshot above) that will apply only to their interfaces. Being the user with administrator's permission allows you to adjust the language based on user preference (while adding or editing the user) or you can switch the language for the account (on the Administration tab).