How do you duplicate ALL things in a symbol?

Example, I have a movie clip that has inside it a bunch of tweens and other movie clips. I want to duplicate this one symbol and everything inside it as new symbols. The only way I can find is that the one root symbol is duplicated but everything else in it stay as the same symbols.

I know I can hand duplicate them all but ! EChH that will take forever as I want to swap some of the image and things in those without affecting the first one and so forth…