diff --git a/README.md b/README.md
index 763109fc..e7a36070 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,7 @@ modelling of rivers.
 + Define river sedimentary layers
 + Save the study in a unique file
 + Run Mage 8 on a study and visualize results
++ Create and edit study alternative scenario tree
 
 Let see the
 [documentation](https://gitlab.irstea.fr/theophile.terraz/pamhyr/-/wikis/home)
diff --git a/doc/dev/build.sh b/doc/dev/build.sh
index 2e8deb56..1e5a760d 100755
--- a/doc/dev/build.sh
+++ b/doc/dev/build.sh
@@ -1,18 +1,23 @@
 #! /bin/sh
 
-echo " PDF  documentation.org"
-emacs -nw --batch                                       \
-      --eval "(require 'org)"                           \
-      --eval "(require 'ox-latex)"                      \
-      --eval "(load-file \"../tools/setup.el\")"        \
-      --file ./documentation.org                        \
-      -f org-latex-export-to-pdf
+FILES="documentation.org scenario.org"
 
-echo " HTML documentation.org"
-emacs -nw --batch                                       \
-      --eval "(require 'org)"                           \
-      --eval "(require 'ox-latex)"                      \
-      --eval "(require 'ox-html)"                       \
-      --eval "(load-file \"../tools/setup.el\")"        \
-      --file ./documentation.org                        \
-      -f org-html-export-to-html
+for file in $FILES
+do
+    echo " PDF  $file"
+    emacs -nw --batch                                   \
+          --eval "(require 'org)"                       \
+          --eval "(require 'ox-latex)"                  \
+          --eval "(load-file \"../tools/setup.el\")"    \
+          --file ./$file                                \
+          -f org-latex-export-to-pdf                    \
+
+    echo " HTML $file"
+    emacs -nw --batch                                   \
+          --eval "(require 'org)"                       \
+          --eval "(require 'ox-latex)"                  \
+          --eval "(require 'ox-html)"                   \
+          --eval "(load-file \"../tools/setup.el\")"    \
+          --file ./$file                                \
+          -f org-html-export-to-html
+done