lubuntu-default-settings/etc/xdg/lubuntu/menus/lxde-applications.menu

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

<Menu>
    <Name>Applications</Name>
    
    <DefaultAppDirs/>
    <DefaultDirectoryDirs/>
    <DefaultMergeDirs/>

<!-- Applications Menu -->
    <Menu>
        <Name>Accessories</Name>
        <Directory>lxde-utility.directory</Directory>
        <Include>
            <And>
                <Category>Utility</Category>
                <Not><Category>Accessibility</Category></Not>
                <Not><Category>System</Category></Not>
		<Not><Category>AudioVideo</Category></Not>
		<Not><Category>Audio</Category></Not>
		<Not><Category>Video</Category></Not>
            </And>
                <Or>
                    <Category>Core</Category>
                    <Category>Legacy</Category>
                </Or>
        </Include>
    </Menu>

    <Menu>
        <Name>Universal Access</Name>
        <Directory>lxde-utility-accessibility.directory</Directory>
        <Include>
            <And>
                <Category>Accessibility</Category>
                <Not><Category>Settings</Category></Not>
            </And>
        </Include>
    </Menu>

    <Menu>
        <Name>Development</Name>
        <Directory>lxde-development.directory</Directory>
        <Include>
            <And>
                <Category>Development</Category>
            </And>
            <Filename>emacs.desktop</Filename>
        </Include>
    </Menu>

    <Menu>
        <Name>Education</Name>
        <Directory>lxde-education.directory</Directory>
        <Include>
            <Or>
                <Category>Education</Category>
            </Or>
            <And>
                <Category>Science</Category>
                <Not><Category>Office</Category></Not>
            </And>
        </Include>
    </Menu> 

    <Menu>
        <Name>Electronics</Name>
        <Directory>Electronics.directory</Directory>
        <Include>
            <Category>Electronics</Category>
        </Include>
    </Menu>

    <Menu>
        <Name>Games</Name>
        <Directory>lxde-game.directory</Directory>
        <Include>
            <Category>Game</Category>
        </Include>
    </Menu>

    <Menu>
        <Name>Graphics</Name>
        <Directory>lxde-graphics.directory</Directory>
        <Include>
            <And>
                <Category>Graphics</Category>
                <Not><Category>Utility</Category></Not>
            </And>
        </Include>
    </Menu>

    <Menu>
        <Name>Internet</Name>
        <Directory>lxde-network.directory</Directory>
        <Include>
            <Category>Network</Category>
        </Include>
    </Menu>

    <Menu>
        <Name>Multimedia</Name>
        <Directory>lxde-audio-video.directory</Directory>
        <Include>
            <Category>Audio</Category>
            <Category>Video</Category>
            <Category>AudioVideo</Category>
        </Include>
    </Menu>

    <Menu>
        <Name>Office</Name>
        <Directory>lxde-office.directory</Directory>
        <Include>
            <Category>Office</Category>
        </Include>
    </Menu>

    <Menu>
        <Name>Other</Name>
        <Directory>lxde-other.directory</Directory>
        <OnlyUnallocated/>
        <Include>
            <And/>
        </Include>
    </Menu>

<!-- Administration Menu, to include in Layout section -->
    <Menu>
        <Name>Administration</Name>
        <Directory>lxde-system-tools.directory</Directory>
        <Include>
            <And>
                <Category>Settings</Category>
                <Category>System</Category>
            </And>
            <Or>
                <Category>System</Category>
            </Or>
        </Include>
        <Exclude>
            <Or>
                <Filename>debian-uxterm.desktop</Filename>
                <Filename>debian-xterm.desktop</Filename>
            </Or>
        </Exclude>
    </Menu>

<!-- Preferences Menu, to include in Layout section -->
    <Menu>
        <Name>DesktopSettings</Name>
        <Directory>lxde-settings.directory</Directory>
        <Include>
            <And>
                <Category>Settings</Category>
                <Not>
                    <Or>
                        <Category>System</Category>
                    </Or>
                </Not>
            </And>
        </Include>
    </Menu>

<!-- General layout of the whole menu -->
    <Layout>
        <Menuname>Settings</Menuname>
        <Separator/>
        <Merge type="all"/>
        <Separator/>
        <Menuname>Administration</Menuname>
        <Menuname>DesktopSettings</Menuname>
    </Layout>

</Menu>