Hello, I had a lot of difficulties too. From memory, you have to install Logi Options and then allow the "Logi Options", "Logi Options Daemon" and "Logitech Unifying Software" applications to access the "Accessibility", "Input Monitoring" and "Bluetooth" components in the "System Preferences" > "Security & Privacy" > "Privacy" menu.Accessibility", "Input Monitoring" and "Bluetooth" components in the "System Preferences" > "Security & Privacy" > "Privacy" menu. Good luck!