Add a keyboard layout for Mac OS

1. Go to the Apple Main Menu

   

2. Click on "System Preferences"

   

3. Click on "Keyboard"

   

4. Choose "Input Sources"

   

5. Click on the "+" sign

   

6. Select layout language e.g. English

   

7. On the right side choose layout you want to add e.g. Colemak

   

8. Click "Add"

   

9. Select layout you just created and close the window.