I know, this might be the most stupid question, but I really don't know if this is reserved to Flex or is available in the Flash CS3 compiler too.

Can I embed stuff in AS3 in Flash?

I develop in OO fashion, but I do not do components. I just stick to classes.
What I wanted to know is how to skin a class with graphical symbols.

My specific case is about developing a player (not a video player, but a multimedia player, for video, swf and audio files). Working in a similar way to the FLVPlayback component, but at less than 10KB, designed following the factory model pattern for the actual players for each media.

I'm now stuck with the video controls, for which I want to be able to define an external asset (which would be a movieclip containing all the controls).

Is this possible?