As a developer of a larger plugin for analyzing oxid eshop data (14 widgets and 14 fullpage reports) I must tell you that each new feature in a new version is a nightmare for me. Everytime I spend hours and hours to find out how a new feature is implemented, how are the call working etc.
The example plugins were not updated since several version. None of the new functions like
[li] two y axis
[/li][li] selection of the mectrics
[/li][li] use of segments
[/li][li] sub tables
are documented or used in the examples.
Therefore please invest some time and update the example plugins and/or update the documentation how to use the new features of a version.