Excellent. I'm looking forward to getting bugged. Good or bad, feedback keeps going.

Yeah you can use // for a comment, but it has to be at the start of a line due to a bug which will be fixed in the next build.

Code:
// ---------------------------------------
// THIS COMMENT WORKS
// ---------------------------------------
<hotkey grave>
    <sendpc local>
        <sendwinMF Dark>
            <grave>   //  BUT THIS COMMENT WILL CRASH THE PROGRAM DUE TO BUG