code: public By getElementLocatorForElementReference(String elementReference, String apendix) {
      	Map<String, By> objectReferenceMap = getObjectReferenceMap(By.class);
      	
          By elementLocator = objectReferenceMap.get(elementReference);
          if (elementLocator instanceof ById) {
              String xpathExpression = elementLocator.toString().replaceAll("By.id: ", "//*[@id='") + "']" + apendix;
              elementLocator = By.xpath(xpathExpression);
          } else if (elementLocator instanceof ByXPath) {
              String xpathExpression = elementLocator.toString().replaceAll("By.xpath: ", "") + apendix;
              elementLocator = By.xpath(xpathExpression);
          } else {
              fail("ElementLocator conversion error");
          }
  
          if (elementLocator == null) {
              fail("No elementLocator is found for element name: '" + elementReference + "'. Available element references are: " + objectReferenceMap.keySet().toString());
          }
          return elementLocator;
      }
docs: Find a {@link By} locator by its reference name and add something to the xpath before the element gets returned
  The drawback of using this method is, that all locators are converted into By.xpath
  
  @param elementReference The name under which the refference is found
  @param apendix The part of the xpath that shall be added
  @return {@link By}