Linking a movieclip that's on the stage to a class, don't want to use library linkage

1

Does anyone know if it’s possible to link a MovieClip on the stage to a class?

I have a MovieClip on the stage called: square_mc

and I have this Move class (see attached code).

Of course when I set the class linkage of square_mc to the Move class, square_mc moves down the screen, Move is working. But how would I attach the Move class to square_mc at runtime, when it’s on the stage?

Thanks!
Attach Code

package {
import flash.display.MovieClip;
import flash.events.Event;
//
public class Move extends MovieClip {
//
public function Move () {
trace (“Move”);
this.addEventListener(Event.ENTER_FRAME, moveSquare);
}
//
private function moveSquare (event:Event) {
this.y += 1;
}
}
}

Thanks!