text: pageflow.ConfigurationEditorView.register('audio_loop', {
    configure: function() {
      this.tab('general', function() {
        this.group('general');
      });
  
      this.tab('files', function() {
        this.input('audio_file_id', pageflow.FileInputView, {collection: pageflow.audioFiles});
        this.input('background_image_id', pageflow.FileInputView, {collection: pageflow.imageFiles});
        this.input('thumbnail_image_id', pageflow.FileInputView, {
          collection: pageflow.imageFiles,
          positioning: false
        });
      });
  
      this.tab('options', function() {
        this.group('options');
      });
    }
  });