diff --git a/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/03.lens/07.course-level-up/portal.en.md b/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/03.lens/07.course-level-up/portal.en.md
deleted file mode 100644
index 6ed88eb9d..000000000
--- a/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/03.lens/07.course-level-up/portal.en.md
+++ /dev/null
@@ -1,20 +0,0 @@
----
-title: 'course : level+1'
-published: false
-visible: false
-hero_classes: ''
-hero_image: ''
----
-
-course : level+1
-
-or level+2 if current level=1
-
-or level-1 if current level=4
-
-#####for parallel or other level course :
-It will be possible to redirect towards an other page in the m3p2 cursus.
-Or to write here some paragraphes separated by html from an other pages, I think.
-Or write here a completely new parallel course
-
-For the moment, please wait.
\ No newline at end of file
diff --git a/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/03.lens/07.course-level-up/portal.es.md b/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/03.lens/07.course-level-up/portal.es.md
deleted file mode 100644
index 007505639..000000000
--- a/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/03.lens/07.course-level-up/portal.es.md
+++ /dev/null
@@ -1,16 +0,0 @@
----
-title: 'curso : nivel+1'
-published: false
-visible: false
----
-
-curso : nivel+1
-or level+2 if current level=1
-or level-1 if current level=4
-
-##### para un curso paralelo o de otro nivel:
-Será (ya es) posible redirigir hacia otra página en el cursus m3p2.
-O escribir aquí algunos párrafos separados por html de otras páginas, creo.
-Tambien podemos aquí escribir un curso paralelo o de otro nivel completamente nuevo
-
-*Por el momento, por favor espere*
\ No newline at end of file
diff --git a/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/03.lens/07.course-level-up/portal.fr.md b/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/03.lens/07.course-level-up/portal.fr.md
deleted file mode 100644
index ea7ca6055..000000000
--- a/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/03.lens/07.course-level-up/portal.fr.md
+++ /dev/null
@@ -1,16 +0,0 @@
----
-title: 'cours : niveau+1'
-published: false
-visible: false
----
-
-cours : niveau+1
-or level+2 if current level=1
-or level-1 if current level=4
-
-##### pour un cours parallèle ou d'un autre niveau
-Il sera posible (cela l'est déjà) de rediriger automatiquement vers une autre page dans le cursus m3p2.
-Ou d'écrire quelques paragraphes avec entre du html emprunter à d'autres pages je pense.
-On peut toujours aussi écrire ici un cours parallèle ou d'un autre niveau complétement nouveau
-
-*Pour le moment,, attendre, SVP*
\ No newline at end of file