I used pallets to separate mine, made a pen outside their pen. once broody, first one was happy to use a different door and outside area. If you don't want to keep her I would advertise her quickly, getting a bit late to pair up with another male. Whatever you do don't eat her, I'm sure she would sell easily :-).
Are they all from one hatch ? Related ?
It was lovely when one of mine hatched some, all 6 adults protected babies :-).