How exciting! It is hard waiting for those eggs to hatch. If she stays on her nest all day, be sure to write down what day it is. Three to four weeks from now you will wish you had!
If she is staying on the nest full time, she shouldn't lay any more eggs. If she is on it at night, wanders around during the day, visits the nest some, but is mostly not on it during the day time, she may lay some more.
I don't think you should move the nest now -- might disturb her enough to leave it. Plus, they tend to vigorously protect it. She might use more straw / wood chips . . . I don't know. I gave my geese piles of straw while they were in the egg laying phase, and they arranged it all as they like before they started brooding. Mine sink into a trance when they are broody and I don't see them doing much . . . I suppose you would have to be in a trance to cope with sitting in one place for 30 days . . .
It takes 30 days or so to hatch a gosling. Make sure she gets off the nest to eat or drink at least once every day or so -- one of my young geese has to be forcibly moved, and then she runs around eating, drinking, and pooping, before she zooms back to her nest in case I stole an egg . . . (they don't poop while they are on the nest . . .) I've heard of young geese dying on the nest because they don't take care of themselves.
The gander will continue to be protective. That is what he is programmed to do to protect the goose and those babies. She's helpless when she is sitting on the nest. Don't back down to him . . . and you'll probably continue to have "talks" every day or so. My most aggressive gander is very stubborn about it. If you can manage to grab him and pin him down by the back of the neck to the ground, or pick him up and hold him for awhile so that he knows he is helpless that will have the most lasting effect, Gently shoving him on the chest also mimics what another gander would do to assert his dominance (use your foot so he won't be able to bite you). Just remember that you are the boss goose - no matter what time of year it is. There's a great thread on here about training your geese . . .