Right. Say you have a movieclip called <I>bob</I>. This clip sits inside another movie called <I>intro</I>.
You place an instance of <I>intro</I> onto your main timeline, and name it (originally) <I>intro</I>.
But say you want to target the <I>bob</I> movie that sits inside <I>intro</I>, and tell it to play.
You use the syntax <I>_root.intro.bob. </I>to select that particular movie clip. This can go on for as many nested movie clips as you like. So to target something within <I>bob</I> you just add another dot and then the clip name. Get me?
So once you’ve given the path of the clip, you just add the action you want hat clip to perform, such as <I>goToAndPlay()</I>. Giving a final line of code that looks like:
These commands can be put in button events, such as <I>onPress()</I> as well.