Index: /applications/editors/josm/plugins/utilsplugin2/src/utilsplugin2/dumbutils/ReplaceGeometryAction.java
===================================================================
--- /applications/editors/josm/plugins/utilsplugin2/src/utilsplugin2/dumbutils/ReplaceGeometryAction.java	(revision 27972)
+++ /applications/editors/josm/plugins/utilsplugin2/src/utilsplugin2/dumbutils/ReplaceGeometryAction.java	(revision 27973)
@@ -85,4 +85,27 @@
         }
     }
+    
+    /**
+     * Replace subjectObject geometry with referenceObject geometry and merge tags
+     * and relation memberships.
+     * 
+     * @param subjectObject
+     * @param referenceSubject
+     * @return 
+     */
+    public boolean replace(OsmPrimitive subjectObject, OsmPrimitive referenceSubject) {
+        if (subjectObject instanceof Node && referenceSubject instanceof Node) {
+            return replaceNode((Node) subjectObject, (Node) referenceSubject);
+        } else if (subjectObject instanceof Way && referenceSubject instanceof Way) {
+            return replaceWay((Way) subjectObject, (Way) referenceSubject);
+        } else if (subjectObject instanceof Node) {
+            return upgradeNode((Node) subjectObject, referenceSubject);
+        } else if (referenceSubject instanceof Node) {
+            // TODO: fix this illogical reversal?
+            return upgradeNode((Node) referenceSubject, subjectObject);
+        } else {
+            throw new IllegalArgumentException(tr("This tool can only replace a node, upgrade a node to a way or a multipolygon, or replace a way with a way."));
+        }
+    }
 
     /**
@@ -242,8 +265,8 @@
             return false;
         }
-        return replaceWayWithWay(subjectWay, referenceWay);
-    }
-    
-    public static boolean replaceWayWithWay(Way subjectWay, Way referenceWay) {
+        return replaceWay(subjectWay, referenceWay);
+    }
+    
+    public static boolean replaceWay(Way subjectWay, Way referenceWay) {
 
         Area a = getCurrentDataSet().getDataSourceArea();