In case of technical questions, you can contact the official support of the Club 3D manufacturer by email: support@club-3d.com. Support works mainly in English, but you can also write a question in Czech and the manufacturer will handle it. The manufacturer will respond within 24 hours. It is also possible to visit the discussion at the link: https://insights.club-3d.com/. Where you can also find useful information on using Club 3D products.