diff --git a/README.md b/README.md
index 2c964bb5..eea1ecae 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,9 @@
 - [Summary](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/branch/1.1/README.md)
-- [[tutorial v1.1_040] A calculated default value](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_040/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_040~1..v1.1_040))
+- [[tutorial v1.1_050] Family: a dynamic family](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_050/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_050~1..v1.1_050))
 
-# [tutorial v1.1_050)] Family: a dynamic family
+# [tutorial v1.1_051)] A conditional disabled variable with dynamic identifier
 
-[View the diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_050~1..v1.1_050)
+[View the diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_051~1..v1.1_051)
 
 
 ## Screenshot
@@ -29,7 +29,7 @@ pip install rougail-cli rougail-output-exporter rougail-output-doc rougail-user-
 Then switch to the tutorial page:
 
 ```shell
-git switch --detach v1.1_050
+git switch --detach v1.1_051
 ```
 
 ## Structure
@@ -37,11 +37,11 @@ git switch --detach v1.1_050
 
 
 <p>
-<a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_050/./">.</a><br/>
-	└── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_050/./firefox/">firefox</a><br/>
-	    ├── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_050/./firefox/00-proxy.yml">00-proxy.yml</a><br/>
-	    ├── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_050/./firefox/10-manual.yml">10-manual.yml</a><br/>
-	    └── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_050/./firefox/20-manual.yml">20-manual.yml</a><br/>
+<a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_051/./">.</a><br/>
+	└── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_051/./firefox/">firefox</a><br/>
+	    ├── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_051/./firefox/00-proxy.yml">00-proxy.yml</a><br/>
+	    ├── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_051/./firefox/10-manual.yml">10-manual.yml</a><br/>
+	    └── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_051/./firefox/20-manual.yml">20-manual.yml</a><br/>
 <br/><br/></p>
 
 Contents of the firefox/20-manual.yml file
@@ -72,6 +72,16 @@ manual:
       description: '{{ identifier }} port'
       default:
         variable: __.http_proxy.port
+
+    version:
+      description: SOCKS host version used by proxy
+      choices:
+        - v4
+        - v5
+      default: v5
+      disabled:
+        type: identifier
+        when: HTTPS
 ...
 
 ```
@@ -119,28 +129,24 @@ This family builds families dynamically
 
 **Identifiers**: <br/>- HTTPS<br/>- SOCKS
 
-| Variable&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   | Description&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   |
-|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| **manual.*https*_proxy.address**<br/>**manual.*socks*_proxy.address**<br/>[`domainname`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                 | *HTTPS* or *SOCKS* address.<br/>**Validator**: the domain name can be an IP<br/>**Default**: the value of the variable "manual.http_proxy.address"                                                                                                                                                                                                                                                                                                                                                                                                            |
-| **manual.*https*_proxy.port**<br/>**manual.*socks*_proxy.port**<br/>[`port`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                             | *HTTPS* or *SOCKS* port.<br/>**Validators**: <br/>- well-known ports (1 to 1023) are allowed<br/>- registred ports (1024 to 49151) are allowed<br/>- private ports (greater than 49152) are allowed<br/>**Default**: the value of the variable "manual.http_proxy.port"                                                                                                                                                                                                                                                                                       |
+| Variable&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   | Description&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   |
+|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| **manual.*https*_proxy.address**<br/>**manual.*socks*_proxy.address**<br/>[`domainname`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                                                                       | *HTTPS* or *SOCKS* address.<br/>**Validator**: the domain name can be an IP<br/>**Default**: the value of the variable "manual.http_proxy.address"                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
+| **manual.*https*_proxy.port**<br/>**manual.*socks*_proxy.port**<br/>[`port`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | *HTTPS* or *SOCKS* port.<br/>**Validators**: <br/>- well-known ports (1 to 1023) are allowed<br/>- registred ports (1024 to 49151) are allowed<br/>- private ports (greater than 49152) are allowed<br/>**Default**: the value of the variable "manual.http_proxy.port"                                                                                                                                                                                                                                                                                                                                             |
+| **manual.*https*_proxy.version**<br/>**manual.*socks*_proxy.version**<br/>[`choice`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory` *`disabled`*                                                                                                                                                                                                                                                                                                                                                                                                                                              | SOCKS host version used by proxy.<br/>**Choices**: <br/>- v4<br/>- v5 **← (default)**<br/>**Disabled**: when the identifier is "HTTPS"                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
 
 ### Let's generate the changelog
 
 ```shell
 rougail -m firefox/ -o doc --doc.contents changelog
 ```
-#### New variables
+#### New variable
 
-| Variable&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   | Description&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   |
-|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| **manual.*https*_proxy.address**<br/>**manual.*socks*_proxy.address**<br/>[`domainname`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                 | *HTTPS* or *SOCKS* address.<br/>**Validator**: the domain name can be an IP<br/>**Default**: the value of the variable "manual.http_proxy.address"                                                                                                                                                                                                                                                                                                                                                                                                            |
-| **manual.*https*_proxy.port**<br/>**manual.*socks*_proxy.port**<br/>[`port`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                             | *HTTPS* or *SOCKS* port.<br/>**Validators**: <br/>- well-known ports (1 to 1023) are allowed<br/>- registred ports (1024 to 49151) are allowed<br/>- private ports (greater than 49152) are allowed<br/>**Default**: the value of the variable "manual.http_proxy.port"                                                                                                                                                                                                                                                                                       |
-
-#### Deleted variables
+| Variable&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   | Description&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   |
+|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| **manual.*https*_proxy.version**<br/>**manual.*socks*_proxy.version**<br/>[`choice`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory` *`disabled`*                                                                                                                                                                                                                                                                                                                                                                                                                                              | SOCKS host version used by proxy.<br/>**Choices**: <br/>- v4<br/>- v5 **← (default)**<br/>**Disabled**: when the identifier is "HTTPS"                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
 
 
-- manual.https_proxy.address
-- manual.https_proxy.port
 
 
-- [[tutorial v1.1_051] A conditional disabled variable with dynamic identifier](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_051/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_051~1..v1.1_051))
+- [[tutorial v1.1_052] Jinja with a parameter](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_052/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_052~1..v1.1_052))
diff --git a/tree.html b/tree.html
index 2ee7c272..845041b9 100644
--- a/tree.html
+++ b/tree.html
@@ -25,11 +25,11 @@
 </head>
 <body>
 	<h1>Directory Tree</h1><p>
-	<a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_050/./">.</a><br>
-	└── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_050/./firefox/">firefox</a><br>
-	&nbsp;&nbsp;&nbsp; ├── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_050/./firefox/00-proxy.yml">00-proxy.yml</a><br>
-	&nbsp;&nbsp;&nbsp; ├── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_050/./firefox/10-manual.yml">10-manual.yml</a><br>
-	&nbsp;&nbsp;&nbsp; └── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_050/./firefox/20-manual.yml">20-manual.yml</a><br>
+	<a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_051/./">.</a><br>
+	└── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_051/./firefox/">firefox</a><br>
+	&nbsp;&nbsp;&nbsp; ├── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_051/./firefox/00-proxy.yml">00-proxy.yml</a><br>
+	&nbsp;&nbsp;&nbsp; ├── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_051/./firefox/10-manual.yml">10-manual.yml</a><br>
+	&nbsp;&nbsp;&nbsp; └── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_051/./firefox/20-manual.yml">20-manual.yml</a><br>
 <br><br><p>
 
 2 directories, 3 files