782 Saxon Revolt (slecting language)

I got this campaign called Anno 782 and it’s in German. Now the documentation says it features an English Version and says it’s language translations are accessed as follows:

Single Player → Campaign Menu → Community Campaigns → Anno 782 - Sachsenaufstand
Choose your preferred language. Recommended Difficulty Level is Moderate.

If anyone’s played this, or read German, how do I select my language?