added data element to nestedcontent.editor.html, tested it and it works"

src/Umbraco.Web.UI.Client/src/views/propertyeditors/nestedcontent/nestedcontent.editor.html

@@ -1,7 +1,7 @@
 <div class="umb-pane">
   <div ng-repeat="property in tab.properties" style="position: relative;">
 
-    <umb-property property="property" ng-class="{'umb-nested-content--not-supported': property.notSupported}">
+    <umb-property property="property" ng-class="{'umb-nested-content--not-supported': property.notSupported}" data-element="{{property.alias}}">
       <umb-editor model="property"></umb-editor>
     </umb-property>
 
@@ -10,4 +10,4 @@
     <p ng-if="property.notSupported">{{property.notSupportedMessage}}</p>
 
   </div>
-</div>
+</div>