[flexcoders] How to copy display objects?

[aceoohay]

I have a couple of display objects such as a panel and an HBox which 
have a number of children. I would like to make a copy of them into 
another container such as a VBox.

Everything I have tried thus far has been akin to a move. How does 
one go about making a copy of two objects into a new container, 
leaving the original objects alone?

What I would like would be sort of like;

var myVBox:VBox = new VBox;
myVBox.addChild(new HBox(myHBox));
myVBox.addChild(new Panel(myPanel));

or

var myVBox:VBox = new VBox;
myVBox.addChild(myHBox.copy());
myVBox.addChild(myPanel.copy());

var myVBox:VBox = new VBox;
myVBox.addChild(myHBox.source);
myVBox.addChild(myPanel.source);

Where myHBox and myPanel are existing objects with some children. I 
know none of the above syntax is supported but I was hoping it might 
make clear what I am trying to do.

I would appreciate any/all help in finding this answer.

Paul