gobo wheel challenge

I have two Clay Paky Alpha Spot 1200 HPE's and the fixtures are nearly identical in their gobo set. However, on the first gobo wheel the fixtures are inverted from each other (gobo 1 in one fixture is gobo 8 in the other and so on). Is there a way in the Hog to invert the wheel set for just one fixture or do I need to change it the fixture itself?

Thanks,
Eric
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