Convert the caps lock key or any modifier keys to the hyper key, all four modifiers combined: ⌃⌥⌘⇧
Ryan Hanson on reddit:
[…] I’ve decided to make my single-purpose hyper key remapping app, Hyperkey, free! For everyone that purchased it in the past, thank you for your support! You can obtain a coupon code for my “pro” version, called Superkey, from within Hyperkey if you purchased it
Superkey has all of Hyperkey, and its main feature is called Seek, where you can type in a search bar and it will use OCR to scan the screen for matches. You can select a match and use the keyboard to click (or right click, double click, middle click, etc). Personally, I remap caps lock to Seek and make it so it clicks when I release caps lock. This makes using Seek feel quick like executing a keyboard shortcut.
There’s a lot of power there, but I’m still wrapping my mind around it.
I wrote about Hyperkey before, and it changed how I used my Mac. I started using Karabiner last year because of a weird bug with my Bluetooth keyboard. But the simplicity of Hyperkey is unmatched. Highly recommended, specially now that it’s free.