diff --git a/rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/script/AbstractRmWebScript.java b/rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/script/AbstractRmWebScript.java
index a6c0ff4c79..9a6704959d 100644
--- a/rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/script/AbstractRmWebScript.java
+++ b/rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/script/AbstractRmWebScript.java
@@ -47,6 +47,7 @@ public abstract class AbstractRmWebScript extends DeclarativeWebScript
     protected static final String STORE_ID = "store_id";
     protected static final String ID = "id";
     protected static final String SUCCESS = "success";
+    protected static final String INVERT = "__invert";
 
     /** Disposition service */
     private DispositionService dispositionService;
diff --git a/rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/script/CustomRefPost.java b/rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/script/CustomRefPost.java
index b65fac1c01..105a142929 100644
--- a/rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/script/CustomRefPost.java
+++ b/rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/script/CustomRefPost.java
@@ -126,7 +126,15 @@ public class CustomRefPost extends AbstractRmWebScript
         NodeRef target = getTargetNode(json);
         NodeRef source = parseRequestForNodeRef(req);
 
-        getRelationshipService().addRelationship(uniqueName, source, target);
+        if (uniqueName.endsWith(INVERT))
+        {
+            String uniqueNameStem = uniqueName.split(INVERT)[0];
+            getRelationshipService().addRelationship(uniqueNameStem, target, source);
+        }
+        else
+        {
+            getRelationshipService().addRelationship(uniqueName, source, target);
+        }
     }
 
     /**
diff --git a/rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/script/RelationshipLabelsGet.java b/rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/script/RelationshipLabelsGet.java
index 3f52761471..c3850a7033 100644
--- a/rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/script/RelationshipLabelsGet.java
+++ b/rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/script/RelationshipLabelsGet.java
@@ -104,7 +104,7 @@ public class RelationshipLabelsGet extends AbstractRmWebScript
 
             if (RelationshipType.PARENTCHILD.equals(type))
             {
-                relationshipLabels.add(new RelationshipLabel(sourceText, uniqueName));
+                relationshipLabels.add(new RelationshipLabel(sourceText, uniqueName + INVERT));
                 relationshipLabels.add(new RelationshipLabel(targetText, uniqueName));
             }
             else if (RelationshipType.BIDIRECTIONAL.equals(type))