Reply to Mapping LEDs - which notes?

I've been trying some mapping of my own, but I've hit a brick wall with the LEDs. How are you supposed to know which note applies to which light? Without a learn button the only way I can believe of is by loading a different mapping and getting it from there.

Is there a diagram or something out there?

Sorry if this has been asked before, I did search.

**Edit - also, rather than starting a new thread, is it possible to map something on the keyboard to sort the browser by key?