SYSTRAN is available in 52 different language pairs (click on the Language
pairs tab to see the full list).
The relevant information in the reference manual can be found on pages 31-32.
I also published another video, on retrieving missing info in the
setup interface (an admittedly rather rare condition). It also covers
switching the language of the user interface from English into one of
the currently supported languages (Basque, Spanish Latin America,
French, Hungarian, Dutch and Vietnamese):
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