code: @SuppressWarnings("unchecked")
      public <T extends WebLocatorAbstractBuilder> T setPosition(final int position) {
          pathBuilder.setPosition(position);
          return (T) this;
      }
docs: <p><b>Used for finding element process (to generate xpath address)</b></p>
  <p>Result Example:</p>
  <pre>
  //*[contains(@class, 'x-grid-panel')][position() = 1]
  </pre>
  
  @param position starting index = 1
  @param <T>      the element which calls this method
  @return this element