EclipseRCP, Add Context Menu Item for project - eclipse

Question

in my custom RCP plugin, I want to add a context menu with command to the project view.
So when I right click the project, then the new context menu item should be shown.
But I do not know how to achieve this, via adding an extension point to plugin.xml?
<extension point="org.eclipse.ui.menus">
<menuContribution locationURI="popup:org.eclipse.ui.navigator.ProjectExplorer#PopupMenu?after=additions">
<command commandId="com.itemis.test.MyOpenCommand"
label="Open My" style="push" tooltip="Open My Editor.">
</command>
</menuContribution>
<extension point="org.eclipse.ui.commands">
<command id="com.itemis.test.MyOpenCommand" name="Open My"
description="Open My Editor.">
</command>
</extension>
<extension point="org.eclipse.ui.handlers">
<handler commandId="com.itemis.test.MyOpenCommand"
class="com.itemis.test.MyOpenHandler">
</handler>
</extension>
package com.itemis.test;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
public class MyOpenHandler extends AbstractHandler {
#Override
public Object execute(ExecutionEvent event) throws ExecutionException {
return null;
}
}