How can I have a MT client connect to any available network

Here is my set up. I have a central tower with 3 sector antennas. I have 3 repeaters with a client card connected to the sector and the other card (s) serving my CPEs. Alll my CPEs are UBNts and are setup as “any” for the network, that way, if the primaty antenna goes down, the CPE reassociates with another available antenna. I would love my repeater towers to do the same. How do I set up the client cards in the MT repeaters to connect to any of several APs dependent on signal strength? Any assist?

just blank out the ssid field and it will auto connect to anything that fits the security profile used. You can also use the connect-list to specify preferences and different profiles if necessary.