Add the following to the list of complex_modifications rules in karabiner.json.

Enable the Touch Bar in Karabiner as a separate 'No product name' LED keyboard in the Devices panel.

In System Preferences for Keyboard, choose Touch Bar shows 'Expanded Control Strip' (at least in Mac OS Catalina).

Install the MirrorDisplays app in your Utilities folder.

I used a combination of Karabiner and the utility at to enable Command plus the Dim Brightness button on the Touch Bar. 'key_code': 'display_brightness_decrement' 'description': 'Disable Cmd+F1 Toggle Screen Mirroring Shortcut (map to display_brightness_decrement), see ', 'title': 'Disable Cmd+F1 Toggle Screen Mirroring',

Navigate to Karabiner Elements > Preferences > Complex Modifications > Rules.You can install the key mapping from here: disable_cmd_f1_screen_mirroring by following instructions here: configuration-complex-modifications.Īlternatively, to achieve this manually: you can place the following file in ~/.config/karabiner/assets/complex_modifications/disable_cmd_f1_screen_mirroring.json then activate it via Karabiner Elements: I've remapped Cmd,F1 to display_brightness_decrement using Karabiner Elements - no need to interfere with other shortcuts! was lacking a stock option to disable this shortcut!

Duplicate screen mirroring on mac