Well jj, if she spends the night on the nest and not the roost, you probably have a winner. Put some dummy eggs under her and see if she settles in. She should be isolated from the others for privacy and also the fact that other hens may add eggs to her nest. The nest should be floor level so the hen & chicks can return to the nest at night. The space you have her in should be large enough to allow her to leave the nest to relieve herself. Of course she must have food and water in her pen and she will leave the nest when she wants/ needs too, so don`t worry about it. When moving her, or swapping the dummy eggs for the eggs you want her to hatch(about 2 days after she settles on the dummies) do it in the dark so as to not stress her. Twenty one days and she makes you proud. Have fun......Pop