I often have stock b-roll which I think would look better if the pan or focus shift is reversed. Frequently I would also want to smooth everything out using the Warp Stabilizer. Unfortunately these features do not work together. At the moment the only way I can think of getting around this is to encode the footage to a new file reversed, import the new file into the project, and then apply the Warp Stabilizer. This is a bit convoluted. Does anyone know a better way ?