HowTo for Pro Site

Hello,
i'm investigating using pro-site to create a community of niche web sites, but I cannot find any specific howtos, videos or documentation other than basic "usage" instruction in the prosite plugin description.
Are there any howtos, videos, or docs ?
In particular, how am I supposed to use the plugin other than configuring levels, prices and functionalities for each level ? Are there any shortcodes ? Do you have any best-practice documentation ? What about edublog ?
Thanks for any direction
kind regards
Antonio