docs: public void showPanel(AbstractPanel panel) {
  		validateNotNull(panel, "panel");
  
  		if (layout == Layout.FULL) {
  			getTabbedFull().setVisible(panel, true);
  		} else {
  			getTabbedSelect().setVisible(panel, true);
  			getTabbedStatus().setVisible(panel, true);
  			getTabbedWork().setVisible(panel, true);
  		}
  		panel.setTabFocus();
  	}