Unfortunately you will not be able to implement this changes to the classes and namespaces names through the code generation templates. Even you change the templates the Enhancer will not be able to enhance the classes, because the information in the metadata container will not show any changes.
So in your case, you can use the default code generation templates and create the classes with the default names. Then open the Model Operation
dialog and select manually classes by schema and change their names and namespace.
I hope that helps.
OpenAccess ORM is now Telerik Data Access
. For more information on the new names, please, check out the Telerik Product Map