You will be able to do the first one at 90-days out for the length of that stay, and then a few days later at 90-days out from the start of your second reservation for the length of that stay.
Of course [hypothetical mode: on] you could always call now and extend your first hotel booking to a full 10 days (at no extra cost for now, as you have already paid your one-night deposit) and then after you've made your first 10-day batch of bookings in August you could reduce it back to the actual length of your stay at that hotel....
Andre
I know this is hypothetical, but I find this a lot more troubling then people holding multiple bookings at restaurants until they decide what they want. People that hold fake resort bookings just to get to eat where they want? If you do this, it's possible somone won't be able to book their trip because the resort is full. That's a lot worse than not being able to eat where I want.
Not criticizing you, just trying to deter people from ever doing this.