Hi Josef Rogovsky,
You are right, the User manual should not have mentioned the (page) template library as early as this. We had previously planned this but we decided to implement site
templates library instead. The latter is still in the works and planned for version 3.1 which is due in September. Instead of starting from scratch, when you create a new project, you will be able to choose from the predefined site templates. All pages will come with predefined templates and you will just need to fill them with whatever content you like.
We will also provide the page template library but we cannot commit to a strict timeframe yet.
the Telerik team