diff --git a/src/osgPlugins/p3d/ReaderWriterP3D.cpp b/src/osgPlugins/p3d/ReaderWriterP3D.cpp
index adfa265c7..9a15d4af2 100644
--- a/src/osgPlugins/p3d/ReaderWriterP3D.cpp
+++ b/src/osgPlugins/p3d/ReaderWriterP3D.cpp
@@ -2956,6 +2956,7 @@ osgDB::ReaderWriter::ReadResult ReaderWriterP3DXML::readNode(const std::string&
     local_opt->getDatabasePathList().push_front(osgDB::getFilePath(fileName));
     local_opt->setFindFileCallback(new MyFindFileCallback);
     local_opt->setPluginStringData("filename",file);
+    local_opt->setPluginStringData("fullpath",fileName);
 
     osgDB::XmlNode::Input input;
     input.open(fileName);
@@ -2980,6 +2981,7 @@ osgDB::ReaderWriter::ReadResult ReaderWriterP3DXML::readNode(std::istream& fin,
 osgDB::ReaderWriter::ReadResult ReaderWriterP3DXML::readNode(osgDB::XmlNode::Input& input, osgDB::ReaderWriter::Options* options) const
 {
     std::string fileName = options ? options->getPluginStringData("filename") : std::string();
+    std::string fullpath = options ? options->getPluginStringData("fullpath") : std::string();
     std::string extension = osgDB::getFileExtension(fileName);
     std::string fileNameSansExtension = osgDB::getNameLessExtension(fileName);
     std::string nestedExtension = osgDB::getFileExtension(fileNameSansExtension);
@@ -3085,6 +3087,9 @@ osgDB::ReaderWriter::ReadResult ReaderWriterP3DXML::readNode(osgDB::XmlNode::Inp
 
     if (presentation_node.valid())
     {
+        presentation_node->setUserValue("filename",fileName);
+        presentation_node->setUserValue("fullpath",fullpath);
+
         if (!options || options->getPluginStringData("P3D_EVENTHANDLER")!="none")
         {
             // if (!readOnlyHoldingPage && !readOnlyMainPresentation)
diff --git a/src/osgPresentation/SlideEventHandler.cpp b/src/osgPresentation/SlideEventHandler.cpp
index b6ac0eb46..0702eafd4 100644
--- a/src/osgPresentation/SlideEventHandler.cpp
+++ b/src/osgPresentation/SlideEventHandler.cpp
@@ -907,6 +907,10 @@ void SlideEventHandler::set(osg::Node* model)
     FindNamedSwitchVisitor findPresentation("Presentation");
     model->accept(findPresentation);
 
+    std::string fullpath;
+    model->getUserValue("fullpath", fullpath);
+    if (!fullpath.empty()) setUserValue("fullpath", fullpath);
+
     if (findPresentation._switch)
     {
         OSG_INFO<<"Presentation '"<<model->getName()<<"'"<<std::endl;
@@ -1192,6 +1196,25 @@ bool SlideEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIAction
                 return true;
             }
 
+            else if (ea.getKey()=='U')
+            {
+                char* editor = getenv("P3D_EDITOR");
+                if (!editor) editor = getenv("EDITOR");
+
+                std::string filename;
+                if (editor && getUserValue("fullpath", filename) && !filename.empty())
+                {
+                    std::stringstream command;
+                    command<<editor<<" "<<filename<<" &"<<std::endl;
+
+                    int result = system(command.str().c_str());
+
+                    OSG_INFO<<"system("<<command.str()<<") result "<<result<<std::endl;
+
+                }
+                return true;
+            }
+
             return false;
         }
         case(osgGA::GUIEventAdapter::KEYUP):