<https://www.insanelymac.com/forum/topic/71109-num-lock-external-keyboard/#comment-507108>
<http://schema.org/text>
"If you don't need to use the numlock function on the macbook keyboard you can remove the remapping of the num-lock key so it doesn't change the remapping table in input remapper. Another possibility is to disable Input Remapper while you are using the external keyboard. Just click the Input Remapper icon and uncheck \"Enable Remapping\". \n"
<https://www.insanelymac.com/forum/topic/71109-num-lock-external-keyboard/>