Navigation help

If you have 5 verticle buttons, is there a way to make another movieclip that is positioned above the 5 buttons, to slide down with ease to the button that a user hover’s their mouse over.Then, when they remove the mouse from the button, it slides back up(with ease) to it’s original position (above the 5 buttons). So it would drop down to the current button that is hovered, then return on the off state

I think I saw a tutorial to do this but I can’t find it anywhere.