A powerful and stable keyboard customizer for macOS.
Serious keyboard mapping software. Not for the faint of heart.
macOS has the ability to change CAPS LOCK, CONTROL, ESCAPE, OPTION, COMMAND, and FUNCTION. This is a good thing.
Karabiner will let you assign CAPS LOCK to press CONTROL,OPTION, COMMAND, and SHIFT all at the same time, giving you an easy keypress to use in conjunction with the rest of the keyboard.
Logic Pro X keyboard command mapping becomes far easier to use.