code: private boolean isAlwaysShow(Component comp) {
  
          return ((comp == m_appIndicator)
              || (comp == m_contextMenu)
              || (comp == m_userDropDown)
              || (comp == m_quickLaunchDropDown)
              || comp.getStyleName().contains(OpenCmsTheme.REQUIRED_BUTTON));
      }
docs: Checks whether the given component may be placed into the buttons sub menu.<p>
  
  @param comp the component to check
  
  @return <code>true</code> in case the component should always be displayed in the toolbar