Baggins: Do you mean the 'Faster Animation", "Slower Animation", and "Normal Animation" under the 'Game Tab'? Those are controled by the +, -, and = buttons. It changes the speed of the game.
JMich: No, he means the "Fast Walk Speed" which is different from the Animation Speed. A few of the old Sierra games had it, with Hero's Quest being the only one I can recall, though it is possible that it existed in King's Quest 1, Police Quest 1 or Space Quest 1, but I truly can't recall if any of those had it.
Fast Walk Speed was one of the best ways to escape from Saurus Rex, since without it you were too slow, even if you were running.
I was more specifically referring to Shanbar's post;
"I dont remember a toggle. But you should be able to change it by pressing + & - on the keyboard.
I remember not being able to use the keypad, had to press ctrl (plus) = and ctrl (plus) - "
+ and - are tied to the faster and slower animation options. It speeds up and slows down the games graphics.
BTW, I did check Hero's Quest, it does have a "High Speed Hero" and "Normal Speed Hero" F4 option under the Game tab.
It is missing from the Quest for Glory 1 version.