Hello!Could you help with my question, please?I need to install some libraries in one program - North American, and International. How can I do this, I can't figure it out.Where can I download them from?

Hello! Could you help me with my question?Can we install 2-3 libraries (for example, North American, and European), and use North American for work in Imperial Units, and European for all Metric?Is there a way to save an Archicad project with all lib...