Tryag File Manager

//etc/xdg/menus/settings.menu

<!DOCTYPE Menu PUBLIC "-//freedesktop//DTD Menu 1.0//EN"
 "http://www.freedesktop.org/standards/menu-spec/1.0/menu.dtd">

<Menu>

<Name>Settings</Name>
  <Directory>Desktop.directory</Directory>

<LegacyDir>/etc/X11/applnk</LegacyDir>
  <LegacyDir>/usr/share/gnome/apps</LegacyDir>

<DefaultAppDirs/>
  <DefaultDirectoryDirs/>

<DefaultMergeDirs/>

<Layout>
    <Menuname>Preferences</Menuname>
    <Menuname>Administration</Menuname>
    <Menuname>Documentation</Menuname>
  </Layout>

<Menu>
    <Name>Preferences</Name>
    <MergeFile>preferences.menu</MergeFile>
    <MergeDir>preferences-post-merged</MergeDir>
  </Menu>

<Menu>
    <Name>Administration</Name>
    <Directory>SystemConfig.directory</Directory>
    <MergeFile>system-settings.menu</MergeFile>
  </Menu>

<Menu>
    <Name>Documentation</Name>
    <Directory>Documentation.directory</Directory>
    <MergeFile>documentation.menu</MergeFile>
  </Menu>

</Menu>