public void AddProperty(String propertyName)
 {
     var popup = new SelectPropertyPopup(SelectPropertyPopup.AllowMultiSelect.Yes);
     BtnAddAttribute.Click();
     popup.SwitchTo();
     popup.SelectProperty(propertyName);
     popup.OkButton.Click();
     popup.SwitchBackToParent(WaitForPopupToClose.Yes);
 }
        public void AddProperty(String propertyName)
        {
            var popup = new SelectPropertyPopup(SelectPropertyPopup.AllowMultiSelect.Yes);

            BtnAddAttribute.Click();
            popup.SwitchTo();
            popup.SelectProperty(propertyName);
            popup.OkButton.Click();
            popup.SwitchBackToParent(WaitForPopupToClose.Yes);
        }