MultitouchExtension

Karabiner-MultitouchExtension allows you to change keys only when your finger is on the trackpad.

MultitouchExtension usage

  1. Open MultitouchExtension app from Preferences > Misc.
    karabiner-elements-multitouch-extension-1@2x.png
  2. Enable “Start at login” on MultitouchExtension Preferences.
    karabiner-elements-multitouch-extension-2@2x.png

How to integrate MultitouchExtension to your complex modifications

See karabiner.json reference manual