docs: public boolean addSubPanels(Container parent, int options)
      {
          if (parent == null)
              parent = m_parent;
          String strScreen = this.getProperty(Params.SCREEN);
          JBasePanel baseScreen = (JBasePanel)ClassServiceUtility.getClassService().makeObjectFromClassName(strScreen);
          if (baseScreen != null)
          {
              FieldList record = null;
              baseScreen.init(this, record);  // test
              return this.changeSubScreen(parent, baseScreen, null, options);   // You must manually push the history command
          }
          else
              Util.getLogger().warning("Screen class not found " + strScreen);
          return false;	// Nothing happened
      }