Registration
Application level components must be registered in the
'' section of the plugin.xml file.WizardCreation
To create and register an application component:
In your project, open the context menu of the destination package and click New (or press Alt+Insert).
In the New menu, click Application Component.
In the New Application Component dialog box that opens, enter the application component name, and then click OK.
The IntelliJ Platform will:
generate a new Java class that implements the ApplicationComponent interface.
register the newly created component in the plugin.xml file,
add a node to the module tree view;
open the created application component class file in the editor.