Developer Toolbar
For creating and running methods, adding method calls and settings forms to the Model Builder, and testing applications, the Developer ribbon toolbar is available in the Windows version. Some of the functionality is connected to the Application Builder and the creation and testing of applications, but you can also create model methods and method calls and run them for custom extensions of a model created in the Model Builder. Also, you can add settings forms for custom settings to control the workflow in the Model Builder.
Data Access in the Application Builder Reference Manual.
Testing the Application in the Application Builder Reference Manual.
Creating and Running Methods in Models. Also see Creating Methods in the Application Builder Reference Manual.
Recording Code in the Application Builder Reference Manual.