[flexcoders] How can I remove a button and place the button in a differenct container in Gmbo

[luvfotography]

Hi, I have this working in Flex 3:

I am removing a button from one hBox and placing it into another hBox when I 
change to state='state1'

    <mx:states>
        <mx:State name="state1">
                <mx:RemoveChild target="{button1}"/>
                <mx:AddChild target="{button1}" relativeTo="{middlehbox}" 
position="lastChild" />             
        </mx:State>

 

How do I accomplish this in Gumbo, 
for my button:

includeIn="??"

thanks,

steve