Even better, hyper key: https://brettterpstra.com/2017/06/15/a-hyper-key-with-karabiner-elements-full-instructions/ https://brettterpstra.com/2017/06/15/a-hyper

Even better, hyper key: https://brettterpstra.com/2017/06/15/a-hyper-key-with-karabiner-elements-full-instructions/ https://brettterpstra.com/2017/06/15/a-hyper-key-with-karabi... (Functions as ESC if pressed alone, otherwise acts as hyper key which is great to use for keyboard shortcuts)