Sometimes the right people don't see the questions. Sorry but that sometimes happens on here. There are a whole lot of good people on here that would have been glad to help you if they saw your post. But on the 4th of July, many were probably busy with other things.
What I usually recommend if you let a hen hatch with the flock is to mark the eggs you want her to hatch (I use a Sharpie) and check under her every day to remove any other eggs. You were right to reduce the number to an amount she can cover. If you don't, the developing eggs can get shoved out where they cool off and die, then they get moved back under her and other good eggs get shoved out and die. Yoou very seldom get good hatches when that happens.
Since you have had two hens adding to her nest and you started with 6, what I expect to happen is that most of the original 6 will hatch. A very few of the others might, the ones that were laid the next day or two, but not really any more than that. At some point, usually about two days after the first one hatches, she has to decide if she keeps setting on the unhatched eggs or take her living hatched chicks to find food and water. She should abandon the nest and any unhatched eggs at that point to take care of her chicks.
Yiou could try a couple of things. If you have an incubator, you could put any unhatched eggs in it in lockdown mode when she abandons the nest. But you'll probably have to raise any of those that hatch in a brooder yourself. You might be able to add a couple nore chicks to her brood, but probably not all of them. They could be hatching for another two weeks.
This one I would not do, but some people have. You can try taking away the chicks as they hatch and dry off. Raise them in a brooder yourself. She might keep sitting on the unhatched eggs and hatch some more out. You could let her raise the last few that hatch, but you will have to raise most of them yourself. And there is no guarantee that she won't abandon the nest anyway if you take the chicks.
It is not the best of circumstances for you right now, but think how smoothly your next hatch will go now that you have the experience.