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diff --git a/org.argeo.slc.client.ui.dist/src/org/argeo/slc/client/ui/dist/utils/CommandHelpers.java b/org.argeo.slc.client.ui.dist/src/org/argeo/slc/client/ui/dist/utils/CommandHelpers.java
new file mode 100644
index 000000000..ad2cfdb58
--- /dev/null
+++ b/org.argeo.slc.client.ui.dist/src/org/argeo/slc/client/ui/dist/utils/CommandHelpers.java
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.argeo.slc.client.ui.dist.utils;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.argeo.ArgeoException;
+import org.argeo.slc.client.ui.dist.DistPlugin;
+import org.eclipse.core.commands.Command;
+import org.eclipse.core.commands.Parameterization;
+import org.eclipse.core.commands.ParameterizedCommand;
+import org.eclipse.jface.action.IContributionItem;
+import org.eclipse.jface.action.IMenuManager;
+import org.eclipse.swt.SWT;
+import org.eclipse.ui.IWorkbench;
+import org.eclipse.ui.commands.ICommandService;
+import org.eclipse.ui.handlers.IHandlerService;
+import org.eclipse.ui.menus.CommandContributionItem;
+import org.eclipse.ui.menus.CommandContributionItemParameter;
+import org.eclipse.ui.services.IServiceLocator;
+
+/**
+ * Centralizes useful methods to manage command updates
+ */
+public class CommandHelpers {
+
+	/**
+	 * Refresh the given command. 
+	 */
+	public static void refreshCommand(IMenuManager menuManager,
+			IServiceLocator locator, String cmdId, String label, String iconPath,
+			boolean showCommand) {
+		IContributionItem ici = menuManager.find(cmdId);
+		if (ici != null)
+			menuManager.remove(ici);
+
+		if (showCommand) {
+			// Set Params
+			CommandContributionItemParameter contributionItemParameter = new CommandContributionItemParameter(
+					locator, null, cmdId, SWT.PUSH);
+			contributionItemParameter.label = label;
+			contributionItemParameter.icon = DistPlugin.getImageDescriptor(iconPath);
+			CommandContributionItem cci = new CommandContributionItem(
+					contributionItemParameter);
+			cci.setId(cmdId);
+			menuManager.add(cci);
+		}
+	}
+
+	/**
+	 * Refresh the given command and optionally corresponding parameters.
+	 * 
+	 * @param menuManager
+	 * @param locator
+	 * @param cmdId
+	 * @param label
+	 * @param showCommand
+	 *            Command must be explicitly removed from the context menu at
+	 *            each refresh setting this to false.
+	 * @param params
+	 *            maps a paramId with a String value
+	 */
+	public static void refreshParameterizedCommand(IMenuManager menuManager,
+			IServiceLocator locator, String cmdId, String label, String iconPath,
+			boolean showCommand, Map<String, String> params) {
+		IContributionItem ici = menuManager.find(cmdId);
+		if (ici != null)
+			menuManager.remove(ici);
+		
+		if (showCommand) {
+			// Set Params
+			CommandContributionItemParameter contributionItemParameter = new CommandContributionItemParameter(
+					locator, null, cmdId, SWT.PUSH);
+			contributionItemParameter.label = label;
+			contributionItemParameter.icon = DistPlugin.getImageDescriptor(iconPath);
+
+			if (params != null)
+				contributionItemParameter.parameters = params;
+
+			CommandContributionItem cci = new CommandContributionItem(
+					contributionItemParameter);
+			cci.setId(cmdId);
+			menuManager.add(cci);
+		}
+	}
+
+	/** Helper to call a command without parameter easily */
+	public static void callCommand(String commandID) {
+		callCommand(commandID, null);
+	}
+
+	/** Helper to call a command with a single parameter easily */
+	public static void callCommand(String commandID, String parameterID,
+			String parameterValue) {
+		Map<String, String> params = new HashMap<String, String>();
+		params.put(parameterID, parameterValue);
+		callCommand(commandID, params);
+	}
+
+	/**
+	 * Helper to call a command with a map of parameters easily
+	 * 
+	 * @param paramMap
+	 *            a map that links various commands ids with corresponding
+	 *            String values.
+	 */
+	public static void callCommand(String commandID,
+			Map<String, String> paramMap) {
+		try {
+			IWorkbench iw = DistPlugin.getDefault().getWorkbench();
+			IHandlerService handlerService = (IHandlerService) iw
+					.getService(IHandlerService.class);
+			ICommandService cmdService = (ICommandService) iw
+					.getActiveWorkbenchWindow().getService(
+							ICommandService.class);
+			Command cmd = cmdService.getCommand(commandID);
+
+			ArrayList<Parameterization> parameters = null;
+			ParameterizedCommand pc; 
+
+			if (paramMap != null) {
+				// Set parameters of the command to launch :
+				parameters = new ArrayList<Parameterization>();
+				Parameterization parameterization;
+				for (String id : paramMap.keySet()) {
+					parameterization = new Parameterization(
+							cmd.getParameter(id), paramMap.get(id));
+					parameters.add(parameterization);
+				}
+				pc = new ParameterizedCommand(cmd,
+						parameters.toArray(new Parameterization[parameters.size()]));
+			} else 
+				pc = new ParameterizedCommand(cmd, null);
+			
+			// build the parameterized command
+			// execute the command
+			handlerService.executeCommand(pc, null);
+		} catch (Exception e) {
+			throw new ArgeoException(
+					"Unexepected exception while opening node editor", e);
+		}
+	}
+
+}