Adding additional functionality to an existing plugin

When you create your plugin you define the functionality that the plugin implements and this will create the plugin with skeleton java files to assist with plugin development.

If you are working on an existing plugin and realize you need to add additional functionality from a different interface then you need to add the additional java files manually.

The easiest way to do this is to use the plugin generator to generate a new plugin project with the additional interfaces and then copy these across to your existing project.