Creating Network with XBee Pro Series 2C XBP24-CZ7WIT-004

Hi.
I want to create a network with my XBee Pro Series 2C XBP24-CZ7WIT-004 modules.
I have many of them.
In my network i want to have one coordinator and multiple end devices.
Which function set should i use and how can i configure my modules as coordinator and end devices individually in X-CTU?
Thanks for your answers.

anyone ???