Automatically Disable Touchpad with Mouse

A useful and perhaps simple feature to add is the option for the touchpad to automatically disable when a mouse is plugged in. The option of course would be a simple checkbox. This feature would be good for those who don't like to normally have the touchpad enabled but would prefer it to enable as a "backup" thing for when the mouse is no longer present and/or dies. So that one isn't stuck on keyboard only and having to navigate to settings to manually enable the touchpad.