I just joined this forum because I have also been looking for a way to enable the console in Dishonored. I've tried screwing around in the .ini files and such, but I have not succeeded. However, I do now know that if you add DEBUG- infront of the game .exe (Debug-dishonored.exe or something like that), it does some... stuff. F7 and Tilde still don't do anything for me, though. Perhaps that will enable us to get closer to bringing up the console.
Edit: Nevermind, I don't think debug does anything. My apologies.
What I would really like to do is change how the chaos system works. Is there a way to guarantee low chaos even when I am killing? I do not want to go through without killing people, but I also do not want a bad ending. For a game that lets you go your own path it sure does limit you with the chaos rating.