Powerful plugin wih little documentation

I have managed to set it up to do what I want, a pretty basic mixture of restricted/public categories, but it cost me several days of experimenting – far more than should be expected.
While we should be grateful to the author for his pioneering efforts, we would also expect him to provide better documentation.

• documentation is particularly poor with regards to basic functionalities
• use scenarios might be provided, so users could understand how it works by following the examples
• solid written documentation is better than youtube