Integrate Data Set Module with Guided Editor

As a rule author using the guided editor,
I would like the editors to integrate with the data set module,
so that I can author rules using Objects / Enumerations that are driven from an external data source, such as a database.

An example would be a set of country codes maintained in a database. I would like to write a decision table that has access to those country codes without having to replicate them in the guided editors.