Hello.
Different distributors have different rights for the language of our tools.
In addition, language is bound with the software. Changing the language incorrectly will cause software issue or system issue. So to ensure the good performance of the tool, the language can not be changed by end users.
However, if you need to change the language of the tool, please feel free to contact with your distributor who you buy this tool from. Then they will help you apply for the language change if there is an available language version for your tool.