QCC rate for at more than one room at once?

Hi,

I'm trying to book a stay for my QCC mom. She and her guests would like to stay in two rooms for two nights. Since there are four room-nights total, could the 3rd QCC room-night rate be applied to one of the nights of the second room?

If that's not possible, could we book one night of the second room elsewhere and still get the QCC rate, knowing that one room at the first hotel is already under the QCC rate on the same night?

Thanks in advance,

Jeff