Copy and paste keys

[James-Firth]

Is your feature request related to a problem? Please describe. The UI can be slow to change a large section of a keyboard from one type of key to another (eg the number row or Fx keys) as you must find each section for each key then click the correct key.

Describe the solution you'd like When a key is selected using ctrl-c (or cmd c on Mac I believe?), I would like to be able to select a different key and paste the current mapping for the original key to the new one.

Describe alternatives you've considered Editing the JSON works well but some are likely to be more hesitant to edit that part.