Add a type of macro keybind that rotates through an array of specified commands, for example ['a', 'b', 'c'].

The first time the macro activator is pressed, command 'a', is run.
The next, 'b' is run.
The third time, 'c' would be run.
Once all items have been run, it goes back around to the first option, so would run 'a' again when pressed a fourth time.

This would allow users to either rotate through settings, or create a toggle that runs different commands depending on the current state.