I have TT Tower 900, love this case, as for your question, I don't think you can use 1 port to control 4 fans, i did a very close setup as to what you are trying to do, I would just get the extra contoller and use 2x controller (in push) use "profile" 1 on those controllers, then 2x controllers (in pull) use "profile" 2 on those controllers just make sure to connect both top fans in PULL to port 1 on 1 & 2 controller and both second to top fans in port 2 on 1&2 controller so would look like this
controller 1: port #1 Top LEFT outside 2nd LEFT outside (PORT#2) and so on
controller 2: port #1 Top Right outside 2nd RIGHT outside (PORT#2) and so on
controller 3: port #1 Top LEFT Inside 2nd LEFT inside (PORT#2) and so on
controller 4: port #1 Top RIGHT inside 2nd RIGHT inside (PORT#2) and so on
This way controller 1 &2 are your PULL fans and controller 3&4 are your PUSH fans
and you would NOT need the fan controller and can use the " TT RGB Software" if you use the Riing Fans ...... normal FANS will require a Fan Controller