code: public void setViewSetting(final String viewId, final String item, final String value) {
          final ConfigItemMapEntrySet view = this.viewById.get(viewId);
          if (view == null)
              return;
  
          view.set(item, value);
      }
docs: Set a view setting
  @param viewId the view to which add the setting
  @param item the item name
  @param value the item value