By clicking on the settings icon available in the main menu bar, you can access the user settings, other agreements you may also have access to and the ability to change your password via the TeamSystem ID link.
User settings
From here, after clicking on the user and entering your password, you can access your information to change:
the name of the user
the language, by changing it, all the menu options visible on the system will be displayed with the selected language (the new language will be applied only after exiting and re-entering your system)