[photoshop-beginners] How can I link repousse objects together?

In Photoshop CS5 extended, I have 3 repousse objects each on a different layer, and would like to temporarily link them together somehow so I can rotate the camera and have them all rotate together as one object. I'd also like to be able to unlink them afterwards to continue manipulating them separately if possible. Tried merge layers, linking, etc. with no luck. Any suggestions appreciated.

Thanks,
John

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