Modding
From XStoryPlayer Wiki
If you are new to modding it is recommended to first explore the 'Getting Started, Getting started with modding' section. It will allow you to follow a few tutorials to give you a basic insight of how modding with XStoryPlayer can be done.
For more advanced modders the section 'Advanced Modding' will give you hands on advice on how to do special things like adding animation, making a characters brain, NLP etc.
Finally there is also an overview of the script language. In it all current supported functions are described.