code: function SettingsFlyout_addFinalDiv() {
                      var _elms = this._element.getElementsByTagName("*");
                      var _maxTab = 0;
                      for (var i = 0; i < _elms.length; i++) {
                          if (_elms[i].tabIndex > _maxTab) {
                              _maxTab = _elms[i].tabIndex;
                          }
                      }
                      var finalDiv = _Global.document.createElement("div");
                      finalDiv.className = _Constants.finalDivClass;
                      finalDiv.style.display = "inline";
                      finalDiv.setAttribute("role", "menuitem");
                      finalDiv.setAttribute("aria-hidden", "true");
                      finalDiv.tabIndex = _maxTab;
                      _ElementUtilities._addEventListener(finalDiv, "focusin", this._focusOnFirstFocusableElementFromParent, false);
  
                      this._element.appendChild(finalDiv);
                  }
docs: Create and add a new final div to the end of the list