[(#REM)
  Message expliquant comment ajouter des compositions, réservé aux admins
]
[(#AUTORISER{configurer,compositions}|oui)
[(#BOITE_OUVRIR{<:compositions:ajouter_compositions:>,info})]
<:compositions:message_info_ajouter_compositions{url_doc=#PLUGIN{compositions,documentation}}|propre:>
[(#BOITE_FERMER)]
]