The example models contain a set of folders which define commonly used components.  These are also organised in locations representing a typical plant. 

 There are a range of typical components for you to become familiar with and to re-us in your own work.

There are also a range of typical (metric) cables and other types of connector.

There are connections and other data to represent a small system.  Then some typical drawings and documents have been published so that you can refer to them.