There is nothing special that needs to be done to set up XStudio for use with XStudio PostMajik as you will be using TCP/IP to communicate with the XStudio audio engine (XEngine). There are no physical connections to be made, nor is there any need to enable the data stream from XStudio as it is always available.
See the topic on Station Configuration -> Host System Properties for details on how to configure XStudio PostMajik for use with XStudio.