Delphi Expert: How to register IOTAEditorNotifier callback

Question

I am writing a Delphi IDE expert (OpenToolsAPI). I want to receive callbacks for the IOTAEditorNotifier interface.

  IOTAEditorNotifier = interface(IOTANotifier)
    ['{0E3B9D7B-E119-11D1-AB0C-00C04FB16FB3}']
    { Called when a new edit view is created(opInsert) or destroyed(opRemove) }
    procedure ViewNotification(const View: IOTAEditView; Operation: TOperation);
    { Called when a view is activated }
    procedure ViewActivated(const View: IOTAEditView);
  end;

How do I register to get those events? I don't find an AddNotifier call that accepts the IOTAEditorNotifier interface.