Index: lams_central/web/includes/javascript/authoring/authoringGeneral.js
===================================================================
diff -u -rb73636820750c23aa0a3feb17c8cb5201d29332a -r3223802379916b7bb9eef32a8c9c3519b4c19acf
--- lams_central/web/includes/javascript/authoring/authoringGeneral.js	(.../authoringGeneral.js)	(revision b73636820750c23aa0a3feb17c8cb5201d29332a)
+++ lams_central/web/includes/javascript/authoring/authoringGeneral.js	(.../authoringGeneral.js)	(revision 3223802379916b7bb9eef32a8c9c3519b4c19acf)
@@ -1653,6 +1653,8 @@
 									activityData.readOnly);
 							// for later reference
 							activityData.activity = activity;
+							// for later reference
+							activityData.activity = activity;
 							break;
 							
 						// Optional Activity
@@ -1799,22 +1801,6 @@
 						activity = this.activity;
 					
 					if (activity) {
-						if (activityData.applyGrouping) {
-							$.each(layout.activities, function(){
-								if (this instanceof ActivityDefs.GroupingActivity
-										&& this.groupingID == activityData.groupingID) {
-									// add reference and redraw the grouped activity
-									if (activity instanceof ActivityDefs.BranchingEdgeActivity) {
-										activity.branchingActivity.grouping = this;
-									} else {
-										activity.grouping = this;
-										activity.draw();
-									}
-									return false;
-								}
-							});
-						}
-						
 						if (layout.floatingActivity && layout.floatingActivity.id == activityData.parentActivityID) {
 							// add a Tool Activity as a Floating Activity element
 							if (!layout.floatingActivity.childActivities) {
@@ -1853,6 +1839,35 @@
 					}
 				});
 				
+				// apply existing groupings 
+				$.each(ld.activities, function(){
+					var activityData = this,
+						activity = this.activity;
+					
+					if (activity && activityData.applyGrouping) {
+						$.each(layout.activities, function(){
+							if (this instanceof ActivityDefs.GroupingActivity
+									&& this.groupingID == activityData.groupingID) {
+								var grouping = this;
+								// add reference and redraw the grouped activity
+								if (activity instanceof ActivityDefs.BranchingEdgeActivity) {
+									activity.branchingActivity.grouping = grouping;
+								} else if (activity instanceof ActivityDefs.ParallelActivity) {
+									$.each(activity.childActivities, function(){
+										this.grouping = grouping;
+									});
+									activity.grouping = grouping;
+									activity.draw();
+								} else {
+									activity.grouping = grouping;
+									activity.draw();
+								}
+								return false;
+							}
+						});
+					}
+				});
+				
 				// apply group -> branch mappings
 				$.each(ld.branchMappings, function(){
 					var entry = this,
Index: lams_central/web/includes/javascript/authoring/authoringProperty.js
===================================================================
diff -u -r07865c855b32c77613ed72dd81cd499033dca4dd -r3223802379916b7bb9eef32a8c9c3519b4c19acf
--- lams_central/web/includes/javascript/authoring/authoringProperty.js	(.../authoringProperty.js)	(revision 07865c855b32c77613ed72dd81cd499033dca4dd)
+++ lams_central/web/includes/javascript/authoring/authoringProperty.js	(.../authoringProperty.js)	(revision 3223802379916b7bb9eef32a8c9c3519b4c19acf)
@@ -543,6 +543,9 @@
 									.data('grouping');
 				if (newGroupingValue != activity.grouping) {
 					activity.grouping = newGroupingValue;
+					$.each(activity.childActivities, function(){
+						this.grouping = newGroupingValue;
+					});
 					redrawNeeded = true;
 				}
 				
@@ -621,17 +624,16 @@
 	 */
 	toolProperties : function() {
 		var activity = this,
-			content = activity.propertiesContent,
-			allowsGrouping = !this.parentActivity || !(this.parentActivity instanceof ActivityDefs.ParallelActivity);
+			content = activity.propertiesContent;
 		
 		if (!content) {
 			// first run, create the content
 			content = activity.propertiesContent = $('#propertiesContentTool').clone().attr('id', null)
 													.show().data('parentObject', activity);
 			$('.propertiesContentFieldTitle', content).val(activity.title);
-			if (!allowsGrouping) {
-				// parts of Parallel Activity can not be grouped
-				$('.propertiesContentFieldGrouping', content).closest('tr').remove();
+			if (activity.parentActivity && (activity.parentActivity instanceof ActivityDefs.ParallelActivity)) {
+				// parts of Parallel Activity are grouped as the parent activity
+				$('.propertiesContentFieldGrouping', content).attr('disabled', 'disabled');
 			}
 
 			if (activity.outputDefinitions) {
@@ -680,9 +682,7 @@
 			});
 		}
 		
-		if (allowsGrouping){
-			PropertyLib.fillGroupingDropdown(activity, activity.grouping);
-		}
+		PropertyLib.fillGroupingDropdown(activity, activity.grouping);
 	},