@Override
  protected byte getConfiguredHorizontalAlignment() {
    return HORIZONTAL_ALIGNMENT_RIGHT;
  }

public class MyGroupBox extends AbstractGroupBox {

  @Override
  protected String getConfiguredLabel() {
    return "Test";
  }

  @Override
  protected String getConfiguredMenuBarPosition() {
    return MENU_BAR_POSITION_TITLE;
  }

  // ...

  public class MyMenu extends AbstractMenu {
    
    @Override
    protected String getConfiguredText() {
      return "Click me";
    }

    @Override
    protected byte getConfiguredHorizontalAlignment() {
      return HORIZONTAL_ALIGNMENT_RIGHT;
    }
  }
}

    @Order(1000)
    @ClassId("f7cc6f3c-c193-438f-9ba7-9d4fc66af54d")
    public class ConfigurationBox extends AbstractGroupBox {

      @Override
      protected String getConfiguredLabel() {
        return "Configuration";
      }

      @Override
      protected String getConfiguredMenuBarPosition() {
        return MENU_BAR_POSITION_TITLE;
      }

      @Order(1000)
      @ClassId("0f5fb5d4-25ac-45b7-8c05-041257feba83")
      public class ConfigTableField extends AbstractTableField<Table> {

        @Override
        protected boolean getConfiguredLabelVisible() {
          return false;
        }

        @ClassId("a423203e-3578-4ee9-b2fa-bec7271e38f2")
        public class Table extends AbstractTable {

          @Override
          protected boolean getConfiguredAutoResizeColumns() {
            return true;
          }

          @Order(1000)
          @ClassId("2ff2d9db-1ff6-4a1d-b8e0-b7380d4ce2ef")
          public class IdColumn extends AbstractStringColumn {

            @Override
            protected String getConfiguredHeaderText() {
              return "ID";
            }
          }
        }
      }

      @Order(1000)
      @ClassId("4455363c-532b-49d3-9124-394520bcb87c")
      public class MenuMenu extends AbstractMenu {

        @Override
        protected String getConfiguredText() {
          return "Menu";
        }

        @Override
        protected byte getConfiguredHorizontalAlignment() {
          return HORIZONTAL_ALIGNMENT_RIGHT;
        }

        @Order(1000)
        @ClassId("236acaef-b747-430d-be1d-834acb2d521b")
        public class SubMenu1 extends AbstractMenu {

          @Override
          protected String getConfiguredText() {
            return "Sub Menu 1";
          }
        }

        @Order(2000)
        @ClassId("0b919d7b-8fff-4d52-ad68-6a63f8715bbe")
        public class SubMenu2 extends AbstractMenu {

          @Override
          protected String getConfiguredText() {
            return "Sub Menu 2";
          }
        }
      }
    }