You can do that in Karabiner Elements, which does work on Sierra (and High Sierra for that matter) https://github.com/tekezo/Karabiner-Elements https://github.

You can do that in Karabiner Elements, which does work on Sierra (and High Sierra for that matter) https://github.com/tekezo/Karabiner-Elements https://github.com/tekezo/Karabiner-Elements