Thanks for the response BA_Bandit.
This is the kit that I used
I don't have any additional switches. The way it works is if you flip a master lock (5 wire actuator) all of the other locks follow along. It works well and it's a nice simple interface.
For me it was the two front doors, but the the description seems to indicate there is only one master (5 wire) actuator so this may not be the case for you