Here is the link to the Documentation for Panotour / Panotour Pro
Playlist of the soundless short videos used in the documentation : Documentation playlistExtra Plugins
You can create your own plugins with Panotour Pro, and you can use the plugins created by others too.
You'll find a list of extra plugins and third party plugins providers here : Extra plugins and third party plugins providersHTML templates
With Panotour Pro you can create your own HTML template.
In this template you can access to tour datas (groups, panoramas, etc...), to create interactive html templates.
Here is a page giving you some examples of HTML templates : HTML template samples