Our daughter-in-law has hatched goose eggs just fine in our old chicken egg incubator. I think she dipped them in warm water once a day in addition to the humidity in the incubator, but I don't think she did anything else differently.

Yes, I've hatched geese in the incubator I usually use for chicken eggs. There are excellent websites with detailed information on temps, humidity and hatch times. I attempted and hatched a pair of eggs two years running and had success with all four, but they had a harder time pipping, and I think it had to do with humidity issues.