How can I (automatically) disable the touchpad when using an external mouse?

All XMG laptops have an Fn hotkey that can be used to manually disable the touchpad. Alternatively, it is possible to disable the touchpad automatically when an external mouse (USB or Bluetooth) is detected. This function can be found by searching for "Touchpad" in the Windows Start menu. There you can uncheck "Leave touchpad enabled when a mouse is connected".