Add menu item for Import/Export context menu in Eclipse

Question

I'm trying to add a submenu to Import and Export items in Project-Explorer's context menu. But, I can't find the menuid/locationURI of those items on the menu.

Can someone please help me to add items to these Import/Export menu items in Eclipse. I'm using Oxygen version. I tried the below segment, but it adds the item under the import/export items.

   <extension
        point="org.eclipse.ui.menus">
        <menuContribution

        locationURI="popup:org.eclipse.ui.navigator.ProjectExplorer#PopupMenu?after=addition">
        <command
        commandId="myplugin.command.mycommand"
        icon="icons/etool16/mycommand.png"
        label="Run mycommand"
        mnemonic="M1+P"
        tooltip="Do something with this project">
        </command>
        </menuContribution>
</extension>

Answer 1

You don't add your own actions because they're not menus. Instead, Import and Export Wizards have their own extension points so that you can start them via the main Import/Export wizards.

I'm a bit confused how you have an Import menu in your context menu.