You can test different language versions of your AUT with the same test. All you have to do is translate the data for the test.
To make multilingual testing possible, you have specify which languages you are using:
These languages are specified during Project creation and are valid for all AUTs in this Project. You will be able to have AUTs which support one or more of these languages.
One of the Project languages is the default language. This is the language which will automatically be set as the working language when you open the Project.
When you are defining an AUT, you choose one or more AUT languages from the selection of Project languages. These languages are the languages the AUT supports. You can start the AUT in these languages and write test data for these languages.
In the toolbar in the ITE, you can change the working language to any of the Project languages. The working language determines which Test Suites you can edit (only those whose AUT supports this language) and the language the AUT is started in.