/**
   * Creates panel storing selector used to select type of the molecular viewer.
   *
   * @return panel with viewer selector
   */
  private VBoxLayoutContainer createViewerTypePanelLocation() {
    VBoxLayoutContainer viewerTypePanelLocation = new VBoxLayoutContainer();
    viewerTypePanelLocation.setBorders(false);

    VBoxLayoutContainer vBoxLayout = new VBoxLayoutContainer();
    vBoxLayout.setVBoxLayoutAlign(VBoxLayoutAlign.LEFT);

    FormPanel viewerTypePanel = new FormPanel();
    viewerTypePanel.setBorders(false);
    viewerTypePanel.setWidth(100);
    viewerTypePanel.getElement().setPadding(new Padding(0));

    ComboBox<String> viewerTypeComboBox = createViewerTypeCombobox();
    FieldLabel viewerTypeComboBoxLabel =
        new FieldLabel(
            viewerTypeComboBox, AppPropertiesManager.CONSTANTS.results_grid_viewer_combo_label());
    viewerTypeComboBox.setStyleName("eppic-default-label");
    viewerTypePanel.add(viewerTypeComboBoxLabel);

    viewerTypePanelLocation.add(viewerTypePanel);

    return viewerTypePanelLocation;
  }