You will have to take them all out of the turner, if you are useing one when the first eggs have only 2 days to go, that will make the later ones with 5 days to go. you can still hand turn the later ones for another day or 2 if you want. The humidity needs to be brought up to about 60-65 for the first batch to hatch and for it to still be safe for the others.
After the first ones hatch and dry get them out into the brooder and try to clean the large egg shell pieces out without haveing it open for too long.
The others will hatch when they are due and you can keep both batches in the brooder together.