I have a movie with 6 Movie Clip button on the main timeline.
If you click on one of these buttons, it shows a hidden movie clip and plays a presentation.
At the end of the presentation, I have a back button. I need to go back to the main timeline. I thought I could just hide presentation movie clip, but I don't think that works.
OK, I'll give that a shot. Seems counterintuitive. In Flash, you'd either addchild() or removeChild().
sym.deleteSymbol() remove one child.
When you drag and drop a symbol from library to Stage, you create one child.