The Language Pack works on the System Attributes , not the Project Attributes .
The good news is that you can install multiple localized versions of Archicad on the same computer. For example, you can have the English (INT) version and the German (GER) version installed side-by-side. archicad language pack work
ArchiCAD is a popular Building Information Modeling (BIM) software used by architects, engineers, and designers worldwide. As a global software solution, ArchiCAD is available in multiple languages to cater to the diverse needs of its users. To ensure that the software is accessible and user-friendly for non-English speaking users, Graphisoft, the developer of ArchiCAD, provides language packs that can be installed to translate the software's interface, documentation, and other related materials. The Language Pack works on the System Attributes