BCI-UE4-Plugin - Brain-Computer-Interface for Unreal Engine 4

Hello, I have just bought this plugin which seems interesting however I do not understand how to make it work properly. Is there some documentation or easy tutorial that I can follow? I checked the example level but for someone who has only ever worked with BCIs and not UE it is a bit difficult to understand how to move. Is anybody willing to share some working prototype done with Openvibe?