I do not understand why there are configurations and templates related to reports in Data Modeler. What is the difference and when are they used?
A Template describes what element types and their properties will be included in the report. For instance Tables, their descriptions, Columns and their Comments.
While as a configuration defines which objects of the selected element type will be included in the report. For instance tables: Customers, Orders, Products and Orderlines, or any table that is included in the subview Movie.