diff --git a/plugins/com.minres.scviewer.e4.application/Application.e4xmi b/plugins/com.minres.scviewer.e4.application/Application.e4xmi
index 17138a9..c78895c 100644
--- a/plugins/com.minres.scviewer.e4.application/Application.e4xmi
+++ b/plugins/com.minres.scviewer.e4.application/Application.e4xmi
@@ -135,9 +135,6 @@
       </children>
     </trimBars>
   </children>
-  <children xsi:type="basic:Window" xmi:id="_Gm0qAEamEeyPDuc8x6Ggxw" elementId="com.minres.scviewer.e4.application.window.help" toBeRendered="false" selectedElement="_M5eT0EamEeyPDuc8x6Ggxw" label="SC Viewer Help" width="800" height="600">
-    <children xsi:type="basic:Part" xmi:id="_M5eT0EamEeyPDuc8x6Ggxw" elementId="com.minres.scviewer.e4.application.part.container" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.parts.help.HelpBrowser"/>
-  </children>
   <handlers xmi:id="_95PfvXNmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.handler.quitCommand" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.QuitHandler" command="_95PfvHNmEeWBq8z1Dv39LA"/>
   <handlers xmi:id="_95PfwXNmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.handler.openCommand" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.OpenHandler" command="_95PfwHNmEeWBq8z1Dv39LA"/>
   <handlers xmi:id="_95PfxHNmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.handler.saveCommand" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.SaveHandler" command="_95Pfw3NmEeWBq8z1Dv39LA"/>
@@ -157,6 +154,7 @@
     <bindings xmi:id="_95Pfv3NmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.keybinding.quit" keySequence="M1+Q" command="_95PfvHNmEeWBq8z1Dv39LA">
       <tags>type:user</tags>
     </bindings>
+    <bindings xmi:id="_2-008EhnEeyp3vLifEzGbQ" elementId="com.minres.scviewer.e4.application.keybinding.help" keySequence="F1" command="_lqjIYEYEEeyPM8G0E2EYww"/>
   </bindingTables>
   <bindingTables xmi:id="_XullMGVOEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.bindingtable.window" bindingContext="_95PfunNmEeWBq8z1Dv39LA">
     <bindings xmi:id="_95PfwnNmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.keybinding.load" keySequence="M1+L" command="_7-AIMJebEeW09eyIbHsdvg">
@@ -244,6 +242,9 @@
       </children>
     </menus>
   </descriptors>
+  <snippets xsi:type="basic:Window" xmi:id="_R8mJUEhwEeyp3vLifEzGbQ" elementId="com.minres.scviewer.e4.application.window.help" selectedElement="_R8mJUUhwEeyp3vLifEzGbQ" label="SC Viewer Help" width="800" height="600">
+    <children xsi:type="basic:Part" xmi:id="_R8mJUUhwEeyp3vLifEzGbQ" elementId="com.minres.scviewer.e4.application.part.container" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.parts.help.HelpBrowser"/>
+  </snippets>
   <commands xmi:id="_95PfvHNmEeWBq8z1Dv39LA" elementId="org.eclipse.ui.file.exit" commandName="Quit Command"/>
   <commands xmi:id="_95PfwHNmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.open" commandName="Open Command"/>
   <commands xmi:id="_95Pfw3NmEeWBq8z1Dv39LA" elementId="org.eclipse.ui.file.save" commandName="Save Command"/>
diff --git a/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/handlers/HelpHandler.java b/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/handlers/HelpHandler.java
index 55e6a9f..187c7d7 100644
--- a/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/handlers/HelpHandler.java
+++ b/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/handlers/HelpHandler.java
@@ -10,23 +10,24 @@
  *******************************************************************************/
 package com.minres.scviewer.e4.application.handlers;
 
+import org.eclipse.e4.core.di.annotations.CanExecute;
 import org.eclipse.e4.core.di.annotations.Execute;
 import org.eclipse.e4.ui.model.application.MApplication;
-import org.eclipse.e4.ui.model.application.ui.MUIElement;
+import org.eclipse.e4.ui.model.application.ui.basic.MWindow;
 import org.eclipse.e4.ui.workbench.modeling.EModelService;
 
 public class HelpHandler {
 
-	static final String DIALOG_ID="com.minres.scviewer.e4.application.dialog.onlinehelp"; //$NON-NLS-1$
 	static final String WINDOW_ID="com.minres.scviewer.e4.application.window.help"; //$NON-NLS-1$
+	@CanExecute
+	public boolean canExecute(MApplication app) {
+		return !app.getChildren().stream().filter(e -> e.getElementId().equals(WINDOW_ID)).findFirst().isPresent();
+	}
 	
 	@Execute
-	public void execute(MApplication app, /*MWindow window,*/ EModelService ms /*@Named("mdialog01.dialog.0") MDialog dialog*/) {
-//		MPart mel = (MPart) ms.find(DIALOG_ID, app); //$NON-NLS-1$
-//		mel.setToBeRendered(true);
-//		mel.setToBeRendered(false);
-		MUIElement w = ms.find(WINDOW_ID, app); 
-		if(w!=null) w.setToBeRendered(true);
+	public void execute(MApplication app, MWindow window, EModelService modelService /*@Named("mdialog01.dialog.0") MDialog dialog*/) {
+		MWindow newWin = (MWindow)modelService.cloneSnippet(app, WINDOW_ID, null);
+		app.getChildren().add(newWin);
 	}
 
 }
diff --git a/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/handlers/SelectAllHandler.java b/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/handlers/SelectAllHandler.java
index 636adff..2c7aa58 100644
--- a/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/handlers/SelectAllHandler.java
+++ b/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/handlers/SelectAllHandler.java
@@ -11,18 +11,21 @@
  
 package com.minres.scviewer.e4.application.handlers;
 
-import javax.inject.Inject;
-
+import org.eclipse.e4.core.di.annotations.CanExecute;
 import org.eclipse.e4.core.di.annotations.Execute;
-import org.eclipse.e4.core.di.annotations.Optional;
 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
 import org.eclipse.e4.ui.workbench.modeling.EPartService;
 
-import com.minres.scviewer.e4.application.parts.DesignBrowser;
 import com.minres.scviewer.e4.application.parts.WaveformViewer;
 
 public class SelectAllHandler {
 
+    @CanExecute
+    public boolean canExecute(EPartService partService) {
+    	MPart part = partService.getActivePart();
+    	return part.getObject() instanceof WaveformViewer;
+    }
+
 	@Execute
 	public void execute(EPartService partService) {
 		MPart part = partService.getActivePart();
diff --git a/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/messages.properties b/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/messages.properties
index 4768167..6c98d1c 100644
--- a/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/messages.properties
+++ b/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/messages.properties
@@ -85,7 +85,7 @@ HelpDialog_2=Stop
 HelpDialog_3=Refresh
 HelpDialog_4=Go
 HelpDialog_5=Address
-HelpDialog_6=https://minres.github.io/SCViewer#key-shortcuts
+HelpDialog_6=https://minres.github.io/SCViewer/#key-shortcuts
 HelpDialog_7=Could not instantiate Browser: 
 marker=Marker
 marker_text=Marker TExt
diff --git a/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/help/HelpBrowser.java b/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/help/HelpBrowser.java
index e965a43..bdd6fa8 100644
--- a/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/help/HelpBrowser.java
+++ b/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/help/HelpBrowser.java
@@ -3,8 +3,11 @@ package com.minres.scviewer.e4.application.parts.help;
 import java.io.File;
 
 import javax.annotation.PostConstruct;
+import javax.annotation.PreDestroy;
 import javax.inject.Inject;
 
+import org.eclipse.e4.core.contexts.IEclipseContext;
+import org.eclipse.e4.ui.model.application.ui.MUIElement;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.jface.resource.ImageDescriptor;
 import org.eclipse.jface.resource.ResourceLocator;
@@ -21,6 +24,7 @@ import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.ProgressBar;
+import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.swt.widgets.ToolBar;
 import org.eclipse.swt.widgets.ToolItem;
@@ -29,6 +33,10 @@ import com.minres.scviewer.e4.application.Messages;
 
 public class HelpBrowser {
 
+	@Inject IEclipseContext ctx;
+	
+	@Inject MUIElement element;
+	
 	private static void decorateItem(ToolItem item, String label, String imageName) {
 		String fullpath = File.separator+"icons"+File.separator+imageName; //$NON-NLS-1$
 		ImageDescriptor descr =  ResourceLocator.imageDescriptorFromBundle("com.minres.scviewer.e4.application", fullpath).orElse(null); //$NON-NLS-1$
@@ -41,13 +49,12 @@ public class HelpBrowser {
 		item.setData(label);
 	}
 
-	@Inject
-	public HelpBrowser() {
-		
-	}
-	
 	@PostConstruct
 	protected Control createComposite(Composite container) {
+//		container.getShell().addListener(SWT.Close, e -> {
+//			e.doit= false;
+//			element.setVisible(false);
+//		});
 		GridLayout gridLayout = new GridLayout();
 		gridLayout.numColumns = 3;
 		container.setLayout(gridLayout);
@@ -141,6 +148,8 @@ public class HelpBrowser {
 		}
 		return container;
 	}
-
-
+	
+	void handleShellCloseEvent(){
+		
+	}
 }
\ No newline at end of file