Description of Extension Points

Extension (RC+ Custom) provides a mechanism (extension points) for incorporating unique features into Epson RC+, such as adding menu items, managing project files, and displaying docking windows.
These work by implementing the interfaces for extension points provided by the Extensions API as exports of the Managed Extensibility Framework (MEF), which is .NET's built-in extension framework.
When creating an Extension project, you can select the extension point you want to use as the Initial Feature, or you can add it as a new item even after the project is created.
This section describes how to implement the extension points.