If you’d like to link up several RevPi modules then you need, alongside the PiBridge that physically links the modules with one another, a configuration file. The file has to inform your RevPi Connect which modules are to be found in which position and which basic settings that the modules have.
You can create the file using PiCtory which is a browser-based application. It can be used on all the standard web servers with PHP support (e.g. Internet Explorer, Morzilla Firefox, …).