I have no experience with this breed, so don't know how easily they will break their brood if disturbed.
Since she's two week in, do you have her on some fake or real eggs? Many broodies will break their brood prematurely if they're not sitting on something. If you use real eggs, rotate them out every 1-2 days if you want to eat them. I have a friend that rotates them out once a week, then cooks the eggs and feeds them to the chickens. I use ceramic eggs, and other people use golf balls. But she should be on something if you need her to hold her brood for a full 4 weeks. I use a minimum of 2 eggs, but you could probably use 6 without her getting overwhelmed.
If you move her whole nestbox, do it at night, do it quickly and without any disturbance to her at all, if possible. Anything you can do to minimize the disturbance to her will make it more likely that she will remain broody. Moving her whole nestbox is an excellent idea, and one that is rarely available to most people.
Try to give her lots of different foods to entice her to eat while she's brooding. Fisherlady has recently posted a wonderful, nutritious and delicious broody menu on this thread. It will be much easier for you to feed her if she's moved to a private area, as the other hens would likely eat any special and tasty food that you leave out for her.
Good luck with her. Having a broody hen is wonderful.
She is on 4 eggs- 2 ceramic and 2 wooden. And it occasionally find an extra green egg under her- I think the hen I bought her with aometimes lays in her box with her(they are very bonded and before she went broody I'd catch them in nestboxes together) but I usually take that out since I don't have a roo. Every morning I also find her little ceramic bowl of food underneath her too- silly girl.
Thank you so much for all your info! Everyone's always so helpful on here, and as a newer chicken owner (only had my flock for a year) the knowledge you all share means a lot.
I'm really hoping she stays broody and will take the chicks, as I'd like the brooding to be as natural as possible.... Fingers crossed!