I don't know if I am missing something, but I had 2 shortcuts setup in version 11. One was setup on the left shift key, I have it set to fade in what I had in the preview window. The second one was setup on the left control key, I have it to toggle the overlay 1 on and off for the preview window. When I upgraded to version 13 I can't get them to work anymore. I have tried to remove and re-add but still doesn't work. I was able to get shortcuts to work when I used letter keys, but I would really like to use shift and control again.