DOES ANYONE KNOW HOW TO MAKE OVERLAY LAYERS ONLY AFFECT THE ONES BELOW IT IN PHOTOSHOP CS5?? 

BECAUSE RIGHT NOW I HAVE COLOUR (MULTIPLY)> OVERLAY SHIT (OVERLAY)>  LINEART (NORMAL) AND I WANT THE OVERLAY TO ONLY AFFECT THE LINEART, BUT IT’S AFFECTING THE COLOUR AS WELL AND MAKING IT LOOK LIKE SHIT

HOW DO I STOP THAT