I am trying to remap the keys to avoid some carpel tunnel issues but when I call it up in options there are a lot of unknown keys. I have one of those elegant little keyboards that don't have a keypad so many of the camera's controls show numbers I can't access and unknown. I have tried pressing or changing but get many "that key is in use do you want to override?" I don't until I know what it controls now and many of those controls have no action that I can see.there are letters I thought free on the keyboard but I can't use them because they are in use. I don't want to set up issues down the road by making changes of convenience now. So, my question is, is there a map that shows what keys the mac is using for each action?