diff --git a/README.md b/README.md
index b244eb9b..e16f225a 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_023] A variable with type "domainname"](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_023/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_023~1..v1.1_023))
+- [[tutorial v1.1_024] A variable with type's parameters](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_024/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_024~1..v1.1_024))
 
-# [tutorial v1.1_024)] A variable with type's parameters
+# [tutorial v1.1_025)] A variable with type "port"
 
-[View the diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_024~1..v1.1_024)
+[View the diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_025~1..v1.1_025)
 
 
 ## Screenshot
@@ -52,13 +52,18 @@ manual:  # Manual proxy configuration
       type: domainname
       params:
         allow_ip: true
+
+    port:
+      description: HTTP Port
+      type: port
+      default: 8080
 ...
 
 ```
 ### Let's generate the documentation
 
 ```console
-foo@bar:~$ git switch --detach v1.1_024
+foo@bar:~$ git switch --detach v1.1_025
 foo@bar:~$ rougail -m firefox/ -o doc -do github
 ```
 | 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;   | 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;   |
@@ -80,18 +85,19 @@ foo@bar:~$ rougail -m firefox/ -o doc -do github
 | 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.http_proxy.address**<br/>[`domainname`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                                                         | HTTP address.<br/>**Validator**: the domain name can be an IP                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
+| **manual.http_proxy.port**<br/>[`port`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                                                                  | HTTP 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**: 8080                                                                                                                                                                                                                                                                                                                                                   |
 
 ### Let's generate the changelog
 
 ```console
-foo@bar:~$ git switch --detach v1.1_024
+foo@bar:~$ git switch --detach v1.1_025
 foo@bar:~$ rougail -m firefox/ -o doc --doc.contents changelog -do github
 ```
-#### Modified variable
+#### 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.http_proxy.address**<br/>[`domainname`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                                                         | HTTP address.<br/>**Validator**: <ins>the domain name can be an IP</ins>                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
+| 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;   | 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;   |
+|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| **manual.http_proxy.port**<br/>[`port`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                              | HTTP 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**: 8080                                                                                                                                                                                                                                                                                                               |
 
 
 ## User datas
@@ -108,7 +114,7 @@ foo@bar:~$ rougail -m firefox/ -o doc --doc.contents changelog -do github
 #### Output
 
 ```console
-foo@bar:~$ git switch --detach v1.1_024
+foo@bar:~$ git switch --detach v1.1_025
 foo@bar:~$ rougail -m firefox/ -u yaml -ff config/01/config.yaml
 ```
 <pre><span style="font-weight: bold; color: #ff0000">🛑 ERRORS</span>
@@ -120,7 +126,7 @@ foo@bar:~$ rougail -m firefox/ -u yaml -ff config/01/config.yaml
 #### Output in read write mode
 
 ```console
-foo@bar:~$ git switch --detach v1.1_024
+foo@bar:~$ git switch --detach v1.1_025
 foo@bar:~$ rougail -m firefox/ -u yaml -ff config/01/config.yaml --cli.read_write
 ```
 <pre><span style="font-weight: bold; color: #ff0000">🛑 ERRORS</span>
@@ -142,7 +148,7 @@ proxy_mode: Manual proxy configuration
 #### Output
 
 ```console
-foo@bar:~$ git switch --detach v1.1_024
+foo@bar:~$ git switch --detach v1.1_025
 foo@bar:~$ rougail -m firefox/ -u yaml -ff config/02/config.yaml
 ```
 <pre><span style="font-weight: bold; color: #ff0000">🛑 ERRORS</span>
@@ -154,7 +160,7 @@ foo@bar:~$ rougail -m firefox/ -u yaml -ff config/02/config.yaml
 #### Output in read write mode
 
 ```console
-foo@bar:~$ git switch --detach v1.1_024
+foo@bar:~$ git switch --detach v1.1_025
 foo@bar:~$ rougail -m firefox/ -u yaml -ff config/02/config.yaml --cli.read_write
 ```
 <pre><span style="font-weight: bold; color: #ff0000">🛑 ERRORS</span>
@@ -179,34 +185,38 @@ manual:
 #### Output
 
 ```console
-foo@bar:~$ git switch --detach v1.1_024
+foo@bar:~$ git switch --detach v1.1_025
 foo@bar:~$ rougail -m firefox/ -u yaml -ff config/03/config.yaml
 ```
 <pre>╭────────────── Caption ───────────────╮
-│ Variable Modified value              │
+│ Variable <span style="color: #ffd700">Default value</span>               │
+│          Modified value              │
 │          (<span style="color: #00aa00">⏳ Original default value</span>) │
 ╰──────────────────────────────────────╯
 Variables:
 <span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/03/config.yaml" (⏳ <span style="color: #00aa00">No proxy</span>)
 <span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
 <span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/03/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/03/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: <span style="color: #ffd700">8080</span>
 </pre>
 #### Output in read write mode
 
 ```console
-foo@bar:~$ git switch --detach v1.1_024
+foo@bar:~$ git switch --detach v1.1_025
 foo@bar:~$ rougail -m firefox/ -u yaml -ff config/03/config.yaml --cli.read_write
 ```
 <pre>╭────────────── Caption ───────────────╮
-│ Variable Modified value              │
+│ Variable <span style="color: #ffd700">Default value</span>               │
+│          Modified value              │
 │          (<span style="color: #00aa00">⏳ Original default value</span>) │
 ╰──────────────────────────────────────╯
 Variables:
 <span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/03/config.yaml" (⏳ <span style="color: #00aa00">No proxy</span>)
 <span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
 <span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/03/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/03/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: <span style="color: #ffd700">8080</span>
 </pre>
 ### Example 4
 
@@ -225,12 +235,10 @@ manual:
 #### Output
 
 ```console
-foo@bar:~$ git switch --detach v1.1_024
+foo@bar:~$ git switch --detach v1.1_025
 foo@bar:~$ rougail -m firefox/ -u yaml -ff config/04/config.yaml
 ```
-<pre><span style="font-weight: bold; color: #ffff00">🔔 WARNINGS</span>
-<span style="color: #ffff00">┗━━ </span>variable or family "manual.http_proxy.port" does not exist, it will be ignored when loading from the YAML file "config/04/config.yaml"
-╭────────────── Caption ───────────────╮
+<pre>╭────────────── Caption ───────────────╮
 │ Variable Modified value              │
 │          (<span style="color: #00aa00">⏳ Original default value</span>) │
 ╰──────────────────────────────────────╯
@@ -238,17 +246,16 @@ Variables:
 <span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/04/config.yaml" (⏳ <span style="color: #00aa00">No proxy</span>)
 <span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
 <span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/04/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/04/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: 3128 ◀ loaded from the YAML file "config/04/config.yaml" (⏳ <span style="color: #00aa00">8080</span>)
 </pre>
 #### Output in read write mode
 
 ```console
-foo@bar:~$ git switch --detach v1.1_024
+foo@bar:~$ git switch --detach v1.1_025
 foo@bar:~$ rougail -m firefox/ -u yaml -ff config/04/config.yaml --cli.read_write
 ```
-<pre><span style="font-weight: bold; color: #ffff00">🔔 WARNINGS</span>
-<span style="color: #ffff00">┗━━ </span>variable or family "manual.http_proxy.port" does not exist, it will be ignored when loading from the YAML file "config/04/config.yaml"
-╭────────────── Caption ───────────────╮
+<pre>╭────────────── Caption ───────────────╮
 │ Variable Modified value              │
 │          (<span style="color: #00aa00">⏳ Original default value</span>) │
 ╰──────────────────────────────────────╯
@@ -256,7 +263,8 @@ Variables:
 <span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/04/config.yaml" (⏳ <span style="color: #00aa00">No proxy</span>)
 <span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
 <span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/04/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/04/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: 3128 ◀ loaded from the YAML file "config/04/config.yaml" (⏳ <span style="color: #00aa00">8080</span>)
 </pre>
 ### Example 5
 
@@ -278,11 +286,10 @@ manual:
 #### Output
 
 ```console
-foo@bar:~$ git switch --detach v1.1_024
+foo@bar:~$ git switch --detach v1.1_025
 foo@bar:~$ rougail -m firefox/ -u yaml -ff config/05/config.yaml
 ```
 <pre><span style="font-weight: bold; color: #ffff00">🔔 WARNINGS</span>
-<span style="color: #ffff00">┣━━ </span>variable or family "manual.http_proxy.port" does not exist, it will be ignored when loading from the YAML file "config/05/config.yaml"
 <span style="color: #ffff00">┣━━ </span>variable or family "manual.use_for_https" does not exist, it will be ignored when loading from the YAML file "config/05/config.yaml"
 <span style="color: #ffff00">┗━━ </span>variable or family "manual.https_proxy" does not exist, it will be ignored when loading from the YAML file "config/05/config.yaml"
 ╭────────────── Caption ───────────────╮
@@ -293,16 +300,16 @@ Variables:
 <span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/05/config.yaml" (⏳ <span style="color: #00aa00">No proxy</span>)
 <span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
 <span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP address: http.proxy.net ◀ loaded from the YAML file "config/05/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: http.proxy.net ◀ loaded from the YAML file "config/05/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: 3128 ◀ loaded from the YAML file "config/05/config.yaml" (⏳ <span style="color: #00aa00">8080</span>)
 </pre>
 #### Output in read write mode
 
 ```console
-foo@bar:~$ git switch --detach v1.1_024
+foo@bar:~$ git switch --detach v1.1_025
 foo@bar:~$ rougail -m firefox/ -u yaml -ff config/05/config.yaml --cli.read_write
 ```
 <pre><span style="font-weight: bold; color: #ffff00">🔔 WARNINGS</span>
-<span style="color: #ffff00">┣━━ </span>variable or family "manual.http_proxy.port" does not exist, it will be ignored when loading from the YAML file "config/05/config.yaml"
 <span style="color: #ffff00">┣━━ </span>variable or family "manual.use_for_https" does not exist, it will be ignored when loading from the YAML file "config/05/config.yaml"
 <span style="color: #ffff00">┗━━ </span>variable or family "manual.https_proxy" does not exist, it will be ignored when loading from the YAML file "config/05/config.yaml"
 ╭────────────── Caption ───────────────╮
@@ -313,8 +320,9 @@ Variables:
 <span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/05/config.yaml" (⏳ <span style="color: #00aa00">No proxy</span>)
 <span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
 <span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP address: http.proxy.net ◀ loaded from the YAML file "config/05/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: http.proxy.net ◀ loaded from the YAML file "config/05/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: 3128 ◀ loaded from the YAML file "config/05/config.yaml" (⏳ <span style="color: #00aa00">8080</span>)
 </pre>
 
 
-- [[tutorial v1.1_025] A variable with type "port"](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_025/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_025~1..v1.1_025))
+- [[tutorial v1.1_026] A disabled family](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_026/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_026~1..v1.1_026))
diff --git a/config/03/output_ro.html b/config/03/output_ro.html
index a61c7bcd..f89e24f4 100644
--- a/config/03/output_ro.html
+++ b/config/03/output_ro.html
@@ -1,10 +1,12 @@
 <pre>╭────────────── Caption ───────────────╮
-│ Variable Modified value              │
+│ Variable <span style="color: #ffd700">Default value</span>               │
+│          Modified value              │
 │          (<span style="color: #00aa00">⏳ Original default value</span>) │
 ╰──────────────────────────────────────╯
 Variables:
 <span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/03/config.yaml" (⏳ <span style="color: #00aa00">No proxy</span>)
 <span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
 <span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/03/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/03/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: <span style="color: #ffd700">8080</span>
 </pre>
diff --git a/config/03/output_rw.html b/config/03/output_rw.html
index a61c7bcd..f89e24f4 100644
--- a/config/03/output_rw.html
+++ b/config/03/output_rw.html
@@ -1,10 +1,12 @@
 <pre>╭────────────── Caption ───────────────╮
-│ Variable Modified value              │
+│ Variable <span style="color: #ffd700">Default value</span>               │
+│          Modified value              │
 │          (<span style="color: #00aa00">⏳ Original default value</span>) │
 ╰──────────────────────────────────────╯
 Variables:
 <span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/03/config.yaml" (⏳ <span style="color: #00aa00">No proxy</span>)
 <span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
 <span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/03/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/03/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: <span style="color: #ffd700">8080</span>
 </pre>
diff --git a/config/04/output_ro.html b/config/04/output_ro.html
index c5cb9c06..4d0ae5a0 100644
--- a/config/04/output_ro.html
+++ b/config/04/output_ro.html
@@ -1,6 +1,4 @@
-<pre><span style="font-weight: bold; color: #ffff00">🔔 WARNINGS</span>
-<span style="color: #ffff00">┗━━ </span>variable or family "manual.http_proxy.port" does not exist, it will be ignored when loading from the YAML file "config/04/config.yaml"
-╭────────────── Caption ───────────────╮
+<pre>╭────────────── Caption ───────────────╮
 │ Variable Modified value              │
 │          (<span style="color: #00aa00">⏳ Original default value</span>) │
 ╰──────────────────────────────────────╯
@@ -8,5 +6,6 @@ Variables:
 <span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/04/config.yaml" (⏳ <span style="color: #00aa00">No proxy</span>)
 <span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
 <span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/04/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/04/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: 3128 ◀ loaded from the YAML file "config/04/config.yaml" (⏳ <span style="color: #00aa00">8080</span>)
 </pre>
diff --git a/config/04/output_rw.html b/config/04/output_rw.html
index c5cb9c06..4d0ae5a0 100644
--- a/config/04/output_rw.html
+++ b/config/04/output_rw.html
@@ -1,6 +1,4 @@
-<pre><span style="font-weight: bold; color: #ffff00">🔔 WARNINGS</span>
-<span style="color: #ffff00">┗━━ </span>variable or family "manual.http_proxy.port" does not exist, it will be ignored when loading from the YAML file "config/04/config.yaml"
-╭────────────── Caption ───────────────╮
+<pre>╭────────────── Caption ───────────────╮
 │ Variable Modified value              │
 │          (<span style="color: #00aa00">⏳ Original default value</span>) │
 ╰──────────────────────────────────────╯
@@ -8,5 +6,6 @@ Variables:
 <span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/04/config.yaml" (⏳ <span style="color: #00aa00">No proxy</span>)
 <span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
 <span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/04/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/04/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: 3128 ◀ loaded from the YAML file "config/04/config.yaml" (⏳ <span style="color: #00aa00">8080</span>)
 </pre>
diff --git a/config/05/output_ro.html b/config/05/output_ro.html
index 5c570c92..0438b8ae 100644
--- a/config/05/output_ro.html
+++ b/config/05/output_ro.html
@@ -1,5 +1,4 @@
 <pre><span style="font-weight: bold; color: #ffff00">🔔 WARNINGS</span>
-<span style="color: #ffff00">┣━━ </span>variable or family "manual.http_proxy.port" does not exist, it will be ignored when loading from the YAML file "config/05/config.yaml"
 <span style="color: #ffff00">┣━━ </span>variable or family "manual.use_for_https" does not exist, it will be ignored when loading from the YAML file "config/05/config.yaml"
 <span style="color: #ffff00">┗━━ </span>variable or family "manual.https_proxy" does not exist, it will be ignored when loading from the YAML file "config/05/config.yaml"
 ╭────────────── Caption ───────────────╮
@@ -10,5 +9,6 @@ Variables:
 <span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/05/config.yaml" (⏳ <span style="color: #00aa00">No proxy</span>)
 <span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
 <span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP address: http.proxy.net ◀ loaded from the YAML file "config/05/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: http.proxy.net ◀ loaded from the YAML file "config/05/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: 3128 ◀ loaded from the YAML file "config/05/config.yaml" (⏳ <span style="color: #00aa00">8080</span>)
 </pre>
diff --git a/config/05/output_rw.html b/config/05/output_rw.html
index 5c570c92..0438b8ae 100644
--- a/config/05/output_rw.html
+++ b/config/05/output_rw.html
@@ -1,5 +1,4 @@
 <pre><span style="font-weight: bold; color: #ffff00">🔔 WARNINGS</span>
-<span style="color: #ffff00">┣━━ </span>variable or family "manual.http_proxy.port" does not exist, it will be ignored when loading from the YAML file "config/05/config.yaml"
 <span style="color: #ffff00">┣━━ </span>variable or family "manual.use_for_https" does not exist, it will be ignored when loading from the YAML file "config/05/config.yaml"
 <span style="color: #ffff00">┗━━ </span>variable or family "manual.https_proxy" does not exist, it will be ignored when loading from the YAML file "config/05/config.yaml"
 ╭────────────── Caption ───────────────╮
@@ -10,5 +9,6 @@ Variables:
 <span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/05/config.yaml" (⏳ <span style="color: #00aa00">No proxy</span>)
 <span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
 <span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP address: http.proxy.net ◀ loaded from the YAML file "config/05/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: http.proxy.net ◀ loaded from the YAML file "config/05/config.yaml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: 3128 ◀ loaded from the YAML file "config/05/config.yaml" (⏳ <span style="color: #00aa00">8080</span>)
 </pre>