diff --git a/docs/tutorial/calculation.rst b/docs/tutorial/calculation.rst
index 47a446a8e..8c850addf 100644
--- a/docs/tutorial/calculation.rst
+++ b/docs/tutorial/calculation.rst
@@ -143,9 +143,113 @@ Deactivating a family means that we will not be able to access it as well as the
         we are using Jinja in a classical way, that is, Jinja allows us to handle different cases,
         for example with the `if` statement.
 
+What can be calculated?
+---------------------------
+
+We have seen that the `disabled` or `hidden` properties could be calculated.
+The default values can be calculated too. 
+
+.. todo:: montrer un exemple de valeur par défaut calculées (type jinja)
 
 .. todo:: montrer aussi ici des exemples de calculs de valeurs variables, ce qui est un des usages principaux de jinja
 
+
+Using jinja in a dynamic family declaration
+-----------------------------------------------
+
+Let's come back to the previous section's :ref:`dynamic family example <conditional_hidden_family>`\ .
+
+In a dynamic family, as seen before, you have the possibility to name your identifier. In the classic declaration, 
+the identifier's variable is named "identifier" by default. Sounds logical:
+
+.. code-block:: yaml
+
+      "{{ identifier }}_proxy":
+        description: "{{ identifier }} Proxy"
+        dynamic:
+          - HTTPS
+          - SOCKS
+        dynamic:
+          - HTTPS
+          - SOCKS
+
+
+Here the identifer's variable takes the value of the `dynamic` family parameter.
+
+We have another possibility:
+
+.. extinclude:: https://forge.cloud.silique.fr/stove/rougail-tutorials/raw/tag/v1.1_050/firefox/20-manual.yml
+   :language: yaml
+   :caption: firefox/20-proxy.yml
+
+.. 
+    manual:
+
+      use_for_https:
+        description: Also use this proxy for HTTPS
+        default: true
+
+      "{{ identifier }}_proxy":
+        description: "{{ identifier }} Proxy"
+        dynamic:
+          - HTTPS
+          - SOCKS
+        hidden:
+          jinja: |
+            {% if my_identifier == 'HTTPS' and manual.use_for_https %}
+            HTTPS is same has HTTP
+            {% endif %}
+          params:
+            my_identifier:
+              type: identifier
+          description: |
+            in HTTPS case if "manual.use_for_https" is set to True
+
+        address:
+          description: "{{ identifier }} address"
+          default:
+            variable: manual.http_proxy.address
+
+        port:
+          description: "{{ identifier }} port"
+          default:
+            variable: manual.http_proxy.port
+
+        version:
+          description: SOCKS host version used by proxy
+          choices:
+            - v4
+            - v5
+          default: v5
+          disabled:
+            type: identifier
+            when: 'HTTPS'
+
+Here in the `hidden` property we have the possibility to name an identifier:
+
+.. code-block:: yaml
+
+          params:
+            my_identifier:
+              type: identifier
+
+Here, the identifer is named `my_identifier`, in a jinja calculation: 
+
+.. code-block:: yaml
+
+        hidden:
+          jinja: |
+            {% if my_identifier == 'HTTPS' and manual.use_for_https %}
+            HTTPS is same has HTTP
+            {% endif %}
+          params:
+            my_identifier:
+              type: identifier
+          description: |
+            in HTTPS case if "manual.use_for_https" is set to True
+
+
+
 .. keypoints:: Key points
 
    Here we have come to the possibility of making any kind of calculations based on the state of the :term:`configuration`.
diff --git a/docs/tutorial/dynfam.rst b/docs/tutorial/dynfam.rst
index 9cc01dd4d..11422a136 100644
--- a/docs/tutorial/dynfam.rst
+++ b/docs/tutorial/dynfam.rst
@@ -185,6 +185,9 @@ We can see that the dynamic family has created:
 
 as we wanted, containing an address and a port.
 
+
+.. _conditional_hidden_family:
+
 A conditional hidden familiy
 --------------------------------
 
@@ -243,7 +246,6 @@ it uses `use_for_https` variable:
     description: Also use this proxy for HTTPS
     default: true
 
-
 .. keypoints:: Key points
 
    - We now know what a generic family is, with its identifier.