HOt Keys may not work well, when I looked at the source I noticed he was using Form Key Down, what I don't think the user realizes it that only works if the form is in focus, if an element/component is focused or if you our outside the form , it won't work. He will need to learn how to register hotkeys to make it actually work properly.
Even if you are on the form but a button or a textbox is focused, it still won't work, Buttons and textboxes have their own keydown event