I cant answer it directly but isn't this the same as having one shape and 
adding a split transform node underneath
(ie split the translate knob and adjust position for the other eye) 

Howard



>________________________________
> From: coreydrake <[email protected]>
>To: [email protected] 
>Sent: Thursday, 8 December 2011, 19:21
>Subject: [Nuke-python] Linking pairs of bezier shapes
> 
>
>I have sets of bezier shapes, exact copies other than one is shifted 
>horizontally from the other. Ie "Bezier1_Right" and "Bezier1_Left". Is there a 
>way to have one shift accordingly when the other is changed?
>
>I have gotten this to work by using a save and update method where I have 
>funtions that first save the data for the shape, look at the difference 
>between the original and the new, and then apply that difference to the pair. 
>I'm trying to work this into a callback but I've run into an issue where this 
>method no longer works because the callback happens over and over again as I 
>move it so it registers no change in movement.
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