When one or more NLFs are installed at your QMF installation, a multilingual environment is created. With the proper authorization, you can choose a presiding language for each QMF session. For example, you can choose English for one session and German for another, provided the German NLF is installed. Although you cannot switch languages during a QMF session, you can switch the command language variable. End the current session and start another to obtain the appropriate language environment.