>You'd be surprised to see which words are marked and which are not. Some of them are marked only when they are at the beginning of the line, while others are highlighted everywhere, and some not, and some never. So, the method is not safe... besides, it's just way too manual... did you think of possible ways to automate the process? :))
>
>p.s. Listen very carefully, I will say this only once: sneak into the command window and type "help reserved words".

And if you look in the index you'll find 'Reserved FileNames' and 'Reserved Key Combinations' right above 'reserved words'. Also useful.