Using duplicate and attach movie to create background

Hi,
I have a few movieclips in the library that I like to use for background. Another words I like to give user different choices for background. So, there would be some buttons or movieclip buttons on the stage. If the user clicks a buton, one of the symbols in the library gets duplicated so many times(depending on its width and hight and what it takes to fill the background), and then by the use of attachmovie it is set on the stage.
Examples of library symbols: a 45 degree line, a custom made strip, or anything else.
I am assuming this does not effect the file size too much. A simple file would do wonders for me as it has been a long learning process.
Thanks alot. :blush: