Flash AS3 reverse play and check label exists

Hi all!

I've searched all over and I can't find what I need. if you can help me out I would very much appreciate it.

I have a movie clip named "ContentClip." Every 5 frames in this clip is a keyframe(classic tween) where an image or content moves from right to left (like as if you are swiping it).

Each key frame has a Stop(); on it so it can hold on that frame showing it's content.

I can play it forward no problem, but I am trying to reverse play back i.e replicate swiping right to go back 5 frames. Currently I have something similar to this -

e.target.parent.addEventListener(Event.ENTER_FRAME, playMe);

    function playMe(e:Event):void

    {

        if(currentFrame == 1)

        {

            e.target.stop();

            e.target.removeEventListener(Event.ENTER_FRAME, playMe);

        }

  else

        {

          e.target.prevFrame();

        }

    }

that is activated on one of the buttons. However, it doesn't stop when it reaches a frame with "stop();" which is an issue as I only want it to reverse for 5 frames.

How Can I -

Make it reverse only 5 frames?

Or make it reverse and stop to only when a frame has a 'label' (no specific label, just 'a' label)?

THank you!