From El Capitan Apple have been "courageous" enough to essentially disable many of the most useful apps with some of their new "features". I still use El Capit

From El Capitan Apple have been "courageous" enough to essentially disable many of the most useful apps with some of their new "features". I still use El Capitan, so I have yet to deal with the Sierra issues, however I have heard that Karabiner-Elements (https://github.com/tekezo/Karabiner-Elements https://github.com/tekezo/Karabiner-Elements) is progressing nicely, so you could try that.