I need help with movieclips

I can’t seem to find a proper tutorial for this anywhere.

What I am trying to do is make a scene creator. I got most of it done, the art, music, backgrounds. It’s just the AS that’s puzzling me.

What I want to happen is you press the next frame button and another graphic shows up from within that certain movieclip. Easy and done. But what I want to happen is when you click on that certain graphic, it duplicates and begins dragging. But only duplicates on the original graphic, that way it doesn’t duplicate every time you move it around. Can someone help?

And also, how do I make sure that when it’s duplicated and I try to duplicate again, it doesn’t erase the first duplicate?