User’s Guide : Extending EViews
  
Extending EViews
EViews provides a number of ways to enhance its functionality outside of the built-in routines. Broadly speaking, you may:
Create your own estimator using EViews tools.
Add menu entries and create new object classes.
Connect to external applications to share data, computation, and output.
These features are documented in a variety of places. We offer here a brief overview and pointers to more detailed descriptions.