Well the product can't do this, as it does 8 in 5Ghz and 8 in 2.4Ghz so practically you only get 8SSIDs.
I have 4 wifi user networks (w1,w2,w3,w4) for internet connectivity. Then I have one for audio devices (a1) that needs network connectivity but no one should be able to access over the network.
Then I have chromecasts in 5 rooms which relies on bonjour to advertise. (r1,r2,r3,r4,r5,r6)
W1 is allowed to cast to all rooms r1-6.
W2 is only allowed to cast to r2,r3,r4,r6.
W3 is only allowed to cast to r1,r3,r4,r5.
w4 is only allowed to cast to r1, r4, r6
The bonjour gateway is configured on the ZD to advertise the appropriate bonjour to the allowed networks.
For example w4 only gets multicast through the bonjour gateway for r1, r4 and r6 so it can't see the other rooms or cast to them.