Простите за небольшой оффтоп, но я бы вообще никому не рекомендовал бы использовать утилиту MenuLibre. У неё скудный функционал, и бывают глюки, так однажды после экспериментов с ней у меня пропала из меню папка wine.
Я предпочитаю редактировать меню (иерархию папок в меню) так:
sudo mousepad /etc/xdg/xdg-xubuntu/menus/xfce-applications.menu
только желательно вначале сделать резервную копию этого файла.
Вот так, например, выглядит моё (все игры рассортированы по жанрам, развёртка всех настроек)
<!DOCTYPE Menu PUBLIC "-//freedesktop//DTD Menu 1.0//EN"
"http://www.freedesktop.org/standards/menu-spec/1.0/menu.dtd">
<Menu>
<Name>Xfce</Name>
<KDELegacyDirs/>
<DefaultAppDirs/>
<DefaultDirectoryDirs/>
<Include>
<Filename>exo-web-browser.desktop</Filename>
<Filename>exo-mail-reader.desktop</Filename>
<Filename>xfce-settings-manager.desktop</Filename>
<Filename>ubuntu-software-center.desktop</Filename>
<Filename>xfhelp4.desktop</Filename>
<Filename>xfce4-about.desktop</Filename>
<Filename>xfce4-session-logout.desktop</Filename>
</Include>
<Layout>
<Filename>exo-web-browser.desktop</Filename>
<Filename>exo-mail-reader.desktop</Filename>
<Separator/>
<Filename>xfce-settings-manager.desktop</Filename>
<Menuname>Settings</Menuname>
<Separator/>
<Merge type="all"/>
<Separator/>
<Filename>ubuntu-software-center.desktop</Filename>
<Separator/>
<Filename>xfhelp4.desktop</Filename>
<Filename>xfce4-about.desktop</Filename>
<Filename>xfce4-session-logout.desktop</Filename>
</Layout>
<Menu>
<Name>Debian</Name>
<Directory>debian.directory</Directory>
<MergeFile>/home/hao/.x-deb.menu</MergeFile>
</Menu>
<Menu>
<Name>Accessories</Name>
<Directory>xfce-accessories.directory</Directory>
<Include>
<Or>
<Category>Accessibility</Category>
<Category>Core</Category>
<Category>Legacy</Category>
<Category>Utility</Category>
</Or>
</Include>
<Layout>
<Filename>xfce4-run.desktop</Filename>
<Filename>xfce4-appfinder.desktop</Filename>
<Separator/>
<Merge type="all"/>
</Layout>
</Menu>
<Menu>
<Name>Development</Name>
<Directory>xfce-development.directory</Directory>
<Include>
<Category>Development</Category>
</Include>
</Menu>
<Menu>
<Name>Education</Name>
<Directory>xfce-education.directory</Directory>
<Include>
<Category>Education</Category>
</Include>
</Menu>
<Menu>
<Name>Science</Name>
<Directory>GnomeScience.directory</Directory>
<Include>
<And>
<Category>Education</Category>
<Category>Science</Category>
</And>
</Include>
</Menu>
<Menu>
<Name>Games</Name>
<Directory>xfce-games.directory</Directory>
<Include>
<And>
<Category>Game</Category>
<Not><Category>ActionGame</Category></Not>
<Not><Category>AdventureGame</Category></Not>
<Not><Category>ArcadeGame</Category></Not>
<Not><Category>BoardGame</Category></Not>
<Not><Category>BlocksGame</Category></Not>
<Not><Category>CardGame</Category></Not>
<Not><Category>KidsGame</Category></Not>
<Not><Category>LogicGame</Category></Not>
<Not><Category>Simulation</Category></Not>
<Not><Category>SportsGame</Category></Not>
<Not><Category>StrategyGame</Category></Not>
</And>
</Include>
<DefaultLayout inline="true" inline_limit="6" inline_header="false">
<Merge type="menus"/>
<Merge type="files"/>
</DefaultLayout>
<Menu>
<Name>Action</Name>
<Directory>ActionGames.directory</Directory>
<Include>
<Category>ActionGame</Category>
</Include>
</Menu>
<Menu>
<Name>Adventure</Name>
<Directory>AdventureGames.directory</Directory>
<Include>
<Category>AdventureGame</Category>
</Include>
</Menu>
<Menu>
<Name>Arcade</Name>
<Directory>ArcadeGames.directory</Directory>
<Include>
<Category>ArcadeGame</Category>
</Include>
</Menu>
<Menu>
<Name>Board</Name>
<Directory>BoardGames.directory</Directory>
<Include>
<Category>BoardGame</Category>
</Include>
</Menu>
<Menu>
<Name>Blocks</Name>
<Directory>BlocksGames.directory</Directory>
<Include>
<Category>BlocksGame</Category>
</Include>
</Menu>
<Menu>
<Name>Cards</Name>
<Directory>CardGames.directory</Directory>
<Include>
<Category>CardGame</Category>
</Include>
</Menu>
<Menu>
<Name>Kids</Name>
<Directory>KidsGames.directory</Directory>
<Include>
<Category>KidsGame</Category>
</Include>
</Menu>
<Menu>
<Name>Logic</Name>
<Directory>LogicGames.directory</Directory>
<Include>
<Category>LogicGame</Category>
</Include>
</Menu>
<Menu>
<Name>Role Playing</Name>
<Directory>RolePlayingGames.directory</Directory>
<Include>
<Category>RolePlaying</Category>
</Include>
</Menu>
<Menu>
<Name>Simulation</Name>
<Directory>SimulationGames.directory</Directory>
<Include>
<Category>Simulation</Category>
</Include>
</Menu>
<Menu>
<Name>Sports</Name>
<Directory>SportsGames.directory</Directory>
<Include>
<Category>SportsGame</Category>
</Include>
</Menu>
<Menu>
<Name>Strategy</Name>
<Directory>StrategyGames.directory</Directory>
<Include>
<Category>StrategyGame</Category>
</Include>
</Menu>
</Menu>
<Menu>
<Name>Graphics</Name>
<Directory>xfce-graphics.directory</Directory>
<Include>
<Category>Graphics</Category>
</Include>
</Menu>
<Menu>
<Name>Multimedia</Name>
<Directory>xfce-multimedia.directory</Directory>
<Include>
<Category>Video</Category>
<Category>AudioVideo</Category>
</Include>
<Menu>
<Name>Audio</Name>
<Directory>audio.directory</Directory>
<Include>
<Category>Audio</Category>
</Include>
</Menu>
<Menu>
<Name>Video</Name>
<Directory>video.directory</Directory>
<Include>
<Category>Video</Category>
</Include>
</Menu>
</Menu>
<Menu>
<Name>Network</Name>
<Directory>xfce-network.directory</Directory>
<Include>
<Category>Network</Category>
</Include>
</Menu>
<Menu>
<Name>Office</Name>
<Directory>xfce-office.directory</Directory>
<Include>
<Category>Office</Category>
</Include>
</Menu>
<Menu>
<Name>System</Name>
<Directory>xfce-system.directory</Directory>
<Include>
<Or>
<Category>Emulator</Category>
<Category>System</Category>
</Or>
</Include>
<DefaultLayout inline="true" inline_limit="6" inline_header="false">
<Merge type="menus"/>
<Merge type="files"/>
</DefaultLayout>
<Menu>
<Name>Xubuntu</Name>
<Directory>xfce-other.directory</Directory>
<Include>
<Filename>xfce-settings-manager.desktop</Filename>
<Filename>ubuntu-software-center.desktop</Filename>
<Filename>xfhelp4.desktop</Filename>
<Filename>xubuntu-website.desktop</Filename>
<Filename>xubuntu-contribute.desktop</Filename>
<Filename>xfce4-about.desktop</Filename>
<Filename>xfce4-session-logout.desktop</Filename>
</Include>
</Menu>
</Menu>
<Menu>
<Name>Other</Name>
<Directory>xfce-other.directory</Directory>
<OnlyUnallocated/>
<Include>
<All/>
</Include>
<Exclude>
<Category>Settings</Category>
<Category>Screensaver</Category>
<Category>X-Xfce-Toplevel</Category>
</Exclude>
</Menu>
<Menu>
<Name>Settings</Name>
<Directory>xfce-settings.directory</Directory>
<Include>
<Category>Settings</Category>
</Include>
<Layout>
<Filename>xfce-settings-manager.desktop</Filename>
<Separator/>
<Merge type="all"/>
</Layout>
<Menu>
<Name>Screensavers</Name>
<Directory>xfce-screensavers.directory</Directory>
<Include>
<Category>Screensaver</Category>
</Include>
</Menu>
</Menu>
<DefaultMergeDirs/>
</Menu>
А сами ярлыки приложений можно редактировать создавая и редактируя *.descktop в папках ~/.local/share/applications или /usr/share/applications.