code: public final Object[][] addNameValue(Map<String, Object> properties, String strName, Object[][] mxProperties)
      {
          if (properties != null)
              mxProperties = this.addNameValue(mxProperties, strName, properties.get(strName));
          return mxProperties;
      }
docs: Add this name/value pair to this matrix.
  @param mxString Source matrix (or null if new).
  @param strName Name to add
  @param strValue Value to add