[Mac] Please bind "Cmd-[" to Backward and "Cmd-]" to forward

They’re the standard key bindings in mac apps (Preview, Slack, just to name a few).

To jump around different parts of a book people would always use backward/forward functionality, so adding hot keys for them would make it way more easier to use.

What’s more, “Cmd-[” and “Cmd-]” are not bound to any functionality yet in MN3.

Never mind. Just managed to create a custom shortcut using Mac os built-in features.