I’ve had my F77 for several years now as that was the only option being made when I originally purchased. As a programmer I really miss the backtick, the tilde and the function keys and my old hands struggle with all the contortions I’ve tried to map my number keys to be function keys. Now that I see theres an F104 I wonder if this is something I could put the insides of my F77 into an F104 case?