I'll answer about all languages, not just European.

Omniscope 2.6 has semi-complete translation into French, Spanish, Dutch, Italian, German, Japanese, Russian, Arabic, Polish, Portugese, Chinese (simplified + traditional), Korean, Turkish, Thai, in order of accuracy.

French is the most accurate, at over 90%. Other languages are less accurate, meaning they have been machine translated but not fully reviewed, and may have some odd translations, but are better than English for non-English speakers.

Omniscope 2.5 has near-complete translation in French, and partial translations of Spanish, Dutch, Italian and German, with missing translations showing as English.

Both 2.5 and 2.6 allow you to edit the translations, whether to correct existing translations, add new translations, or add entirely new languages. You can use these in your own installations, and/or submit back to us for review and inclusion. If you are interested, we offer a free Professional license to those making sufficient contribution to translations, and more to those who fully complete and maintain a single language. Deep knowledge of Omniscope is essential for this. Please get in touch if so.