For four studios? I agree with Chuck that the odds of getting all 4 studios is not great. What would be greater odds would be that the OP would end up with some of the group at SSR and some at OKW.
It does beg the question though..with the limit on waitlists per member, could the member put all four studios on the waitlist anyway? Here's what it says on the member web site:
You can have up to two active wait list requests per Membership per Use Year.
Would a request for four rooms be considered one waitlist or two? And if one, would it only come through if all four rooms opened up at the same time? If so, I'd say the chances of getting that request would be less than zero.