diff --git a/README.md b/README.md
index b93d1de..c556780 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 025] A variable with type's parameters](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 026] A variable with type "port"](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))
 
-# [tutorial 026] A variable with type "port"
+# [tutorial 027] A disabled family
 
-[View the diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_026~1..v1.1_026)
+[View the diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_027~1..v1.1_027)
 
 
 ## Screenshot
@@ -38,6 +38,7 @@ proxy_mode:
 ---
 manual:
   description: Manual proxy configuration
+  disabled: true
 
   http_proxy:
     description: HTTP Proxy
@@ -61,18 +62,9 @@ foo@bar:~$ rougail -v 1.1 -m firefox/ -o doc -do github
 ```
 ### Variables
 
-| Variable                                                                                        | Description                                                                                     |
-|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| **proxy_mode**<br/>[`choice`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                                        | Configure Proxy Access to the Internet.<br/>**Choices**: <br/>- No proxy ← (default)<br/>- Auto-detect proxy settings for this network<br/>- Use system proxy settings<br/>- Manual proxy configuration<br/>- Automatic proxy configuration URL                                                                                                                                                                                                                                                                           |
-
-#### Manual proxy configuration
-
-##### HTTP Proxy
-
-| 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.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/>**Default**: 8080                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
+| 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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   |
+|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| **proxy_mode**<br/>[`choice`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Configure Proxy Access to the Internet.<br/>**Choices**: <br/>- No proxy ← (default)<br/>- Auto-detect proxy settings for this network<br/>- Use system proxy settings<br/>- Manual proxy configuration<br/>- Automatic proxy configuration URL                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
 
 
 ## User data
@@ -91,18 +83,27 @@ foo@bar:~$ rougail -v 1.1 -m firefox/ -o doc -do github
 ```console
 foo@bar:~$ rougail -v 1.1 -m firefox/ -u file -ff config/01/config.yaml
 ```
-<pre>🛑 ERRORS
-<span style="color: #ff0000">┣━━ </span>The following variables are mandatory but have no value:
-<span style="color: #ff0000">┗━━ </span>  - manual.http_proxy.address (HTTP address)
+<pre>╭────────────────────────── Caption ──────────────────────────╮
+│ Variable                           <span style="color: #ffd700">Default value</span>            │
+│ <span style="color: #5c5cff">Undocumented variable</span>              Modified value           │
+│ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
+│ <span style="color: #ffaf00">Unmodifiable variable</span>                                       │
+╰─────────────────────────────────────────────────────────────╯
+Variables:
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: <span style="color: #ffd700">No proxy</span>
 </pre>
 #### Output in read write mode
 
 ```console
 foo@bar:~$ rougail -v 1.1 -m firefox/ -u file -ff config/01/config.yaml --exporter.read_write
 ```
-<pre><pre>🛑 ERRORS
-<span style="color: #ff0000">┣━━ </span>The following variables are mandatory but have no value:
-<span style="color: #ff0000">┗━━ </span>  - manual.http_proxy.address (HTTP address)
+<pre><pre>╭────────────────────────── Caption ──────────────────────────╮
+│ Variable                           <span style="color: #ffd700">Default value</span>            │
+│ <span style="color: #5c5cff">Undocumented variable</span>              Modified value           │
+│ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
+╰─────────────────────────────────────────────────────────────╯
+Variables:
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: <span style="color: #ffd700">No proxy</span>
 </pre>
 </pre>
 ### Example 2
@@ -120,18 +121,26 @@ proxy_mode: Manual proxy configuration
 ```console
 foo@bar:~$ rougail -v 1.1 -m firefox/ -u file -ff config/02/config.yaml
 ```
-<pre>🛑 ERRORS
-<span style="color: #ff0000">┣━━ </span>The following variables are mandatory but have no value:
-<span style="color: #ff0000">┗━━ </span>  - manual.http_proxy.address (HTTP address)
+<pre>╭────────────────────────── Caption ──────────────────────────╮
+│ Variable                           <span style="color: #ffd700">Default value</span>            │
+│ <span style="color: #5c5cff">Undocumented variable</span>              Modified value           │
+│ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
+╰─────────────────────────────────────────────────────────────╯
+Variables:
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
 #### Output in read write mode
 
 ```console
 foo@bar:~$ rougail -v 1.1 -m firefox/ -u file -ff config/02/config.yaml --exporter.read_write
 ```
-<pre><pre>🛑 ERRORS
-<span style="color: #ff0000">┣━━ </span>The following variables are mandatory but have no value:
-<span style="color: #ff0000">┗━━ </span>  - manual.http_proxy.address (HTTP address)
+<pre><pre>╭────────────────────────── Caption ──────────────────────────╮
+│ Variable                           <span style="color: #ffd700">Default value</span>            │
+│ <span style="color: #5c5cff">Undocumented variable</span>              Modified value           │
+│ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
+╰─────────────────────────────────────────────────────────────╯
+Variables:
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
 </pre>
 ### Example 3
@@ -152,17 +161,15 @@ manual:
 ```console
 foo@bar:~$ rougail -v 1.1 -m firefox/ -u file -ff config/03/config.yaml
 ```
-<pre>╭────────────────────────── Caption ──────────────────────────╮
+<pre>🛑 ERRORS
+<span style="color: #ff0000">┗━━ </span>cannot access to optiondescription "manual" (Manual proxy configuration) because has property "disabled"
+╭────────────────────────── Caption ──────────────────────────╮
 │ Variable                           <span style="color: #ffd700">Default value</span>            │
 │ <span style="color: #5c5cff">Undocumented variable</span>              Modified value           │
 │ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
 ╰─────────────────────────────────────────────────────────────╯
 Variables:
-<span style="color: #5c5cff">┣━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
-<span style="color: #5c5cff">┗━━ </span>📂 manual
-<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>📓 address: example.net
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 port: <span style="color: #ffd700">8080</span>
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
 #### Output in read write mode
 
@@ -175,11 +182,7 @@ foo@bar:~$ rougail -v 1.1 -m firefox/ -u file -ff config/03/config.yaml --export
 │ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
 ╰─────────────────────────────────────────────────────────────╯
 Variables:
-<span style="color: #5c5cff">┣━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
-<span style="color: #5c5cff">┗━━ </span>📂 manual
-<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>📓 address: example.net
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 port: <span style="color: #ffd700">8080</span>
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
 </pre>
 ### Example 4
@@ -201,17 +204,16 @@ manual:
 ```console
 foo@bar:~$ rougail -v 1.1 -m firefox/ -u file -ff config/04/config.yaml
 ```
-<pre>╭────────────────────────── Caption ──────────────────────────╮
+<pre>🛑 ERRORS
+<span style="color: #ff0000">┣━━ </span>cannot access to optiondescription "manual" (Manual proxy configuration) because has property "disabled"
+<span style="color: #ff0000">┗━━ </span>cannot access to optiondescription "manual" (Manual proxy configuration) because has property "disabled"
+╭────────────────────────── Caption ──────────────────────────╮
 │ Variable                           <span style="color: #ffd700">Default value</span>            │
 │ <span style="color: #5c5cff">Undocumented variable</span>              Modified value           │
 │ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
 ╰─────────────────────────────────────────────────────────────╯
 Variables:
-<span style="color: #5c5cff">┣━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
-<span style="color: #5c5cff">┗━━ </span>📂 manual
-<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>📓 address: example.net
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 port: 3128 (<span style="color: #00aa00">8080</span>)
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
 #### Output in read write mode
 
@@ -224,11 +226,7 @@ foo@bar:~$ rougail -v 1.1 -m firefox/ -u file -ff config/04/config.yaml --export
 │ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
 ╰─────────────────────────────────────────────────────────────╯
 Variables:
-<span style="color: #5c5cff">┣━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
-<span style="color: #5c5cff">┗━━ </span>📂 manual
-<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>📓 address: example.net
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 port: 3128 (<span style="color: #00aa00">8080</span>)
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
 </pre>
 ### Example 5
@@ -254,6 +252,8 @@ manual:
 foo@bar:~$ rougail -v 1.1 -m firefox/ -u file -ff config/05/config.yaml
 ```
 <pre>🛑 ERRORS
+<span style="color: #ff0000">┣━━ </span>cannot access to optiondescription "manual" (Manual proxy configuration) because has property "disabled"
+<span style="color: #ff0000">┣━━ </span>cannot access to optiondescription "manual" (Manual proxy configuration) because has property "disabled"
 <span style="color: #ff0000">┣━━ </span>unknown option "use_for_https" in optiondescription "manual" (Manual proxy configuration)
 <span style="color: #ff0000">┗━━ </span>unknown option "https_proxy" in optiondescription "manual" (Manual proxy configuration)
 ╭────────────────────────── Caption ──────────────────────────╮
@@ -262,11 +262,7 @@ foo@bar:~$ rougail -v 1.1 -m firefox/ -u file -ff config/05/config.yaml
 │ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
 ╰─────────────────────────────────────────────────────────────╯
 Variables:
-<span style="color: #5c5cff">┣━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
-<span style="color: #5c5cff">┗━━ </span>📂 manual
-<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>📓 address: http.proxy.net
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 port: 3128 (<span style="color: #00aa00">8080</span>)
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
 #### Output in read write mode
 
@@ -279,13 +275,9 @@ foo@bar:~$ rougail -v 1.1 -m firefox/ -u file -ff config/05/config.yaml --export
 │ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
 ╰─────────────────────────────────────────────────────────────╯
 Variables:
-<span style="color: #5c5cff">┣━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
-<span style="color: #5c5cff">┗━━ </span>📂 manual
-<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>📓 address: http.proxy.net
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 port: 3128 (<span style="color: #00aa00">8080</span>)
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
 </pre>
 
 
-- [[tutorial 027] A disabled family](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_027/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_027~1..v1.1_027))
+- [[tutorial 028] A conditional disabled family with a variable](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_028/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_028~1..v1.1_028))
diff --git a/config/01/output_ro.html b/config/01/output_ro.html
index 28450ac..cdecbe8 100644
--- a/config/01/output_ro.html
+++ b/config/01/output_ro.html
@@ -1,4 +1,9 @@
-<pre>🛑 ERRORS
-<span style="color: #ff0000">┣━━ </span>The following variables are mandatory but have no value:
-<span style="color: #ff0000">┗━━ </span>  - manual.http_proxy.address (HTTP address)
+<pre>╭────────────────────────── Caption ──────────────────────────╮
+│ Variable                           <span style="color: #ffd700">Default value</span>            │
+│ <span style="color: #5c5cff">Undocumented variable</span>              Modified value           │
+│ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
+│ <span style="color: #ffaf00">Unmodifiable variable</span>                                       │
+╰─────────────────────────────────────────────────────────────╯
+Variables:
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: <span style="color: #ffd700">No proxy</span>
 </pre>
diff --git a/config/01/output_rw.html b/config/01/output_rw.html
index 28450ac..f74f3a6 100644
--- a/config/01/output_rw.html
+++ b/config/01/output_rw.html
@@ -1,4 +1,8 @@
-<pre>🛑 ERRORS
-<span style="color: #ff0000">┣━━ </span>The following variables are mandatory but have no value:
-<span style="color: #ff0000">┗━━ </span>  - manual.http_proxy.address (HTTP address)
+<pre>╭────────────────────────── Caption ──────────────────────────╮
+│ Variable                           <span style="color: #ffd700">Default value</span>            │
+│ <span style="color: #5c5cff">Undocumented variable</span>              Modified value           │
+│ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
+╰─────────────────────────────────────────────────────────────╯
+Variables:
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: <span style="color: #ffd700">No proxy</span>
 </pre>
diff --git a/config/02/output_ro.html b/config/02/output_ro.html
index 28450ac..4c097ea 100644
--- a/config/02/output_ro.html
+++ b/config/02/output_ro.html
@@ -1,4 +1,8 @@
-<pre>🛑 ERRORS
-<span style="color: #ff0000">┣━━ </span>The following variables are mandatory but have no value:
-<span style="color: #ff0000">┗━━ </span>  - manual.http_proxy.address (HTTP address)
+<pre>╭────────────────────────── Caption ──────────────────────────╮
+│ Variable                           <span style="color: #ffd700">Default value</span>            │
+│ <span style="color: #5c5cff">Undocumented variable</span>              Modified value           │
+│ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
+╰─────────────────────────────────────────────────────────────╯
+Variables:
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
diff --git a/config/02/output_rw.html b/config/02/output_rw.html
index 28450ac..4c097ea 100644
--- a/config/02/output_rw.html
+++ b/config/02/output_rw.html
@@ -1,4 +1,8 @@
-<pre>🛑 ERRORS
-<span style="color: #ff0000">┣━━ </span>The following variables are mandatory but have no value:
-<span style="color: #ff0000">┗━━ </span>  - manual.http_proxy.address (HTTP address)
+<pre>╭────────────────────────── Caption ──────────────────────────╮
+│ Variable                           <span style="color: #ffd700">Default value</span>            │
+│ <span style="color: #5c5cff">Undocumented variable</span>              Modified value           │
+│ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
+╰─────────────────────────────────────────────────────────────╯
+Variables:
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
diff --git a/config/03/output_ro.html b/config/03/output_ro.html
index 9a3ff4f..98e6cee 100644
--- a/config/03/output_ro.html
+++ b/config/03/output_ro.html
@@ -1,12 +1,10 @@
-<pre>╭────────────────────────── Caption ──────────────────────────╮
+<pre>🛑 ERRORS
+<span style="color: #ff0000">┗━━ </span>cannot access to optiondescription "manual" (Manual proxy configuration) because has property "disabled"
+╭────────────────────────── Caption ──────────────────────────╮
 │ Variable                           <span style="color: #ffd700">Default value</span>            │
 │ <span style="color: #5c5cff">Undocumented variable</span>              Modified value           │
 │ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
 ╰─────────────────────────────────────────────────────────────╯
 Variables:
-<span style="color: #5c5cff">┣━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
-<span style="color: #5c5cff">┗━━ </span>📂 manual
-<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>📓 address: example.net
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 port: <span style="color: #ffd700">8080</span>
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
diff --git a/config/03/output_rw.html b/config/03/output_rw.html
index 9a3ff4f..4c097ea 100644
--- a/config/03/output_rw.html
+++ b/config/03/output_rw.html
@@ -4,9 +4,5 @@
 │ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
 ╰─────────────────────────────────────────────────────────────╯
 Variables:
-<span style="color: #5c5cff">┣━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
-<span style="color: #5c5cff">┗━━ </span>📂 manual
-<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>📓 address: example.net
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 port: <span style="color: #ffd700">8080</span>
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
diff --git a/config/04/output_ro.html b/config/04/output_ro.html
index 56d3640..57c06eb 100644
--- a/config/04/output_ro.html
+++ b/config/04/output_ro.html
@@ -1,12 +1,11 @@
-<pre>╭────────────────────────── Caption ──────────────────────────╮
+<pre>🛑 ERRORS
+<span style="color: #ff0000">┣━━ </span>cannot access to optiondescription "manual" (Manual proxy configuration) because has property "disabled"
+<span style="color: #ff0000">┗━━ </span>cannot access to optiondescription "manual" (Manual proxy configuration) because has property "disabled"
+╭────────────────────────── Caption ──────────────────────────╮
 │ Variable                           <span style="color: #ffd700">Default value</span>            │
 │ <span style="color: #5c5cff">Undocumented variable</span>              Modified value           │
 │ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
 ╰─────────────────────────────────────────────────────────────╯
 Variables:
-<span style="color: #5c5cff">┣━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
-<span style="color: #5c5cff">┗━━ </span>📂 manual
-<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>📓 address: example.net
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 port: 3128 (<span style="color: #00aa00">8080</span>)
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
diff --git a/config/04/output_rw.html b/config/04/output_rw.html
index 56d3640..4c097ea 100644
--- a/config/04/output_rw.html
+++ b/config/04/output_rw.html
@@ -4,9 +4,5 @@
 │ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
 ╰─────────────────────────────────────────────────────────────╯
 Variables:
-<span style="color: #5c5cff">┣━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
-<span style="color: #5c5cff">┗━━ </span>📂 manual
-<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>📓 address: example.net
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 port: 3128 (<span style="color: #00aa00">8080</span>)
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
diff --git a/config/05/output_ro.html b/config/05/output_ro.html
index 984844a..0a2c978 100644
--- a/config/05/output_ro.html
+++ b/config/05/output_ro.html
@@ -1,4 +1,6 @@
 <pre>🛑 ERRORS
+<span style="color: #ff0000">┣━━ </span>cannot access to optiondescription "manual" (Manual proxy configuration) because has property "disabled"
+<span style="color: #ff0000">┣━━ </span>cannot access to optiondescription "manual" (Manual proxy configuration) because has property "disabled"
 <span style="color: #ff0000">┣━━ </span>unknown option "use_for_https" in optiondescription "manual" (Manual proxy configuration)
 <span style="color: #ff0000">┗━━ </span>unknown option "https_proxy" in optiondescription "manual" (Manual proxy configuration)
 ╭────────────────────────── Caption ──────────────────────────╮
@@ -7,9 +9,5 @@
 │ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
 ╰─────────────────────────────────────────────────────────────╯
 Variables:
-<span style="color: #5c5cff">┣━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
-<span style="color: #5c5cff">┗━━ </span>📂 manual
-<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>📓 address: http.proxy.net
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 port: 3128 (<span style="color: #00aa00">8080</span>)
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>
diff --git a/config/05/output_rw.html b/config/05/output_rw.html
index ec2ef0c..4c097ea 100644
--- a/config/05/output_rw.html
+++ b/config/05/output_rw.html
@@ -4,9 +4,5 @@
 │ <span style="color: #ff0000">Undocumented but modified variable</span> (<span style="color: #00aa00">Original default value</span>) │
 ╰─────────────────────────────────────────────────────────────╯
 Variables:
-<span style="color: #5c5cff">┣━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
-<span style="color: #5c5cff">┗━━ </span>📂 manual
-<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>📓 address: http.proxy.net
-<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 port: 3128 (<span style="color: #00aa00">8080</span>)
+<span style="color: #5c5cff">┗━━ </span>📓 proxy_mode: Manual proxy configuration (<span style="color: #00aa00">No proxy</span>)
 </pre>