Mac
1. Go to Capture One xx -> Preferences -> General -> Catalog and Session. Then checkmark the option Open in new window.
2. Open an existing Session/Catalog or create a new one from the File menu.
Windows
1. Go to Edit -> Preferences -> General -> Catalog and Session. Then checkmark the option Open in new window.
2. Open an existing Session/Catalog or create a new one from the File menu.