diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6c6d848cf..42dc0b692 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -45,3 +45,8 @@ Branche de développement
 ========================
 
 - insert the title of the export inside the "download" page ;
+- add twig helper "print_or_message" ;
+- add twig helper for routing ;
+- add css layout for boxes ;
+- collect supplementary query parameters in SearchController ;
+
diff --git a/DependencyInjection/ChillMainExtension.php b/DependencyInjection/ChillMainExtension.php
index 8d7e1e202..7b4b0243a 100644
--- a/DependencyInjection/ChillMainExtension.php
+++ b/DependencyInjection/ChillMainExtension.php
@@ -116,6 +116,7 @@ class ChillMainExtension extends Extension implements PrependExtensionInterface,
         $loader->load('services/command.yml');
         $loader->load('services/phonenumber.yml');
         $loader->load('services/cache.yml');
+        $loader->load('services/templating.yml');
     }
     
     public function getConfiguration(array $config, ContainerBuilder $container)
diff --git a/Resources/config/services/templating.yml b/Resources/config/services/templating.yml
new file mode 100644
index 000000000..99dfbe574
--- /dev/null
+++ b/Resources/config/services/templating.yml
@@ -0,0 +1,11 @@
+services:
+    Chill\MainBundle\Templating\ChillTwigHelper:
+        tags:
+            - { name: twig.extension }
+            
+    Chill\MainBundle\Templating\ChillTwigRoutingHelper:
+        arguments:
+            $requestStack: '@Symfony\Component\HttpFoundation\RequestStack'
+            $originalExtension: '@twig.extension.routing'
+        tags:
+            - { name: twig.extension }
\ No newline at end of file
diff --git a/Resources/public/sass/_custom.scss b/Resources/public/sass/_custom.scss
index 393d16e75..59617dafe 100644
--- a/Resources/public/sass/_custom.scss
+++ b/Resources/public/sass/_custom.scss
@@ -12,6 +12,7 @@
 @import 'custom/address';
 @import 'custom/record_actions';
 @import 'custom/flash_messages';
+@import 'custom/box';
 
 
 html,body {
diff --git a/Resources/public/sass/custom/_box.scss b/Resources/public/sass/custom/_box.scss
new file mode 100644
index 000000000..aa539f6a1
--- /dev/null
+++ b/Resources/public/sass/custom/_box.scss
@@ -0,0 +1,24 @@
+.chill__box {
+    font-variant: small-caps;
+    display: inline;
+    padding: .2em .6em .3em;
+    font-size: 0.88rem;
+    font-weight: bold;
+    line-height: 1;
+    text-align: center;
+    white-space: nowrap;
+    vertical-align: baseline;
+    border-radius: .25em;
+    color: white;
+
+    &.green {
+        background-color: var(--chill-green);
+        color: white;
+    }
+    
+    &.red {
+        background-color: var(--chill-red);
+        color: white;
+    }
+}
+
diff --git a/Resources/translations/messages.fr.yml b/Resources/translations/messages.fr.yml
index 93cab97d0..545672126 100644
--- a/Resources/translations/messages.fr.yml
+++ b/Resources/translations/messages.fr.yml
@@ -39,6 +39,12 @@ Edit: Modifier
 Update: Mettre à jour
 Back to the list: Retour à la liste
 
+#elements used in software
+centers: centres
+Centers: Centres
+comment: commentaire
+Comment: Commentaire
+
 #pagination
 Previous: Précédent
 Next: Suivant
diff --git a/Resources/views/Extensions/PrintOrMessage/blockquote.html.twig b/Resources/views/Extensions/PrintOrMessage/blockquote.html.twig
new file mode 100644
index 000000000..3dc4529c5
--- /dev/null
+++ b/Resources/views/Extensions/PrintOrMessage/blockquote.html.twig
@@ -0,0 +1 @@
+{% if value is not empty %}<blockquote class="chill-user-quote">{{ value|nl2br }}</blockquote>{% else %}<span class="chill-no-data-statement">{{ message|trans }}</span>{% endif %}
\ No newline at end of file
diff --git a/Resources/views/Extensions/PrintOrMessage/default.html.twig b/Resources/views/Extensions/PrintOrMessage/default.html.twig
new file mode 100644
index 000000000..f58878151
--- /dev/null
+++ b/Resources/views/Extensions/PrintOrMessage/default.html.twig
@@ -0,0 +1 @@
+{% if value is not empty %}{{ value|trans }}{% else %}<span class="chill-no-data-statement">{{ message|trans }}</span>{% endif %}
\ No newline at end of file
diff --git a/Templating/ChillTwigHelper.php b/Templating/ChillTwigHelper.php
new file mode 100644
index 000000000..7e665f8a3
--- /dev/null
+++ b/Templating/ChillTwigHelper.php
@@ -0,0 +1,62 @@
+<?php
+/*
+ * 
+ */
+namespace Chill\MainBundle\Templating;
+
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFilter;
+use Twig\Environment;
+
+/**
+ * 
+ */
+class ChillTwigHelper extends AbstractExtension
+{
+    public function getFilters()
+    {
+        return [
+            new TwigFilter('chill_print_or_message', [$this, 'printOrMessage'], [
+                'needs_environment' => true,
+                'is_safe' => ['html', 'html_attrs']
+            ]),
+        ];
+    }
+    
+    /**
+     * Print `value` inside a template, or, if $value is empty, 
+     * print $message.
+     * 
+     * The template can be customized. The template is a full path to another
+     * template, or one of the key belows: 
+     * 
+     * - 'default' ;
+     * - 'blockquote' ;
+     * 
+     * @param Environment $twig
+     * @param string $value
+     * @param string $message
+     * @param string $template
+     * @return string
+     */
+    public function printOrMessage(
+        Environment $twig,
+        $value, 
+        $message = 'No value', 
+        $template = 'default'
+    ) {
+        switch ($template) {
+            case 'default':
+            case 'blockquote':
+                $t = '@ChillMain/Extensions/PrintOrMessage/'.$template.'.html.twig';
+                break;
+            default:
+                $t = $template;
+        }
+        
+        return $twig->render($t, [
+            'value' => $value,
+            'message' => $message
+        ]);
+    }
+}
diff --git a/Templating/ChillTwigRoutingHelper.php b/Templating/ChillTwigRoutingHelper.php
new file mode 100644
index 000000000..6e9bc900f
--- /dev/null
+++ b/Templating/ChillTwigRoutingHelper.php
@@ -0,0 +1,114 @@
+<?php
+/*
+ */
+namespace Chill\MainBundle\Templating;
+
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFunction;
+use Symfony\Component\HttpFoundation\RequestStack;
+use Symfony\Bridge\Twig\Extension\RoutingExtension;
+
+/**
+ * Provides function to build path with returnPath.
+ * 
+ * The logic of the function is based on the original routing extension.
+ *
+ */
+class ChillTwigRoutingHelper extends AbstractExtension
+{
+    /**
+     *
+     * @var RequestStack
+     */
+    protected $requestStack;
+    
+    /**
+     *
+     * @var RoutingExtension
+     */
+    protected $originalExtension;
+    
+    public function __construct(
+        RequestStack $requestStack, 
+        RoutingExtension $originalExtension
+    ) {
+        $this->requestStack = $requestStack;
+        $this->originalExtension = $originalExtension;
+    }
+
+    
+    public function getFunctions()
+    {
+        return [
+            new TwigFunction('chill_return_path_or', [$this, 'getReturnPathOr'], ['is_safe_callback' => [$this, 'isUrlGenerationSafe']] ),
+            new TwigFunction('chill_path_add_return_path', [$this, 'getPathAddReturnPath'], ['is_safe_callback' => [$this, 'isUrlGenerationSafe']] ),
+            new TwigFunction('chill_path_forward_return_path', [$this, 'getPathForwardReturnPath'], ['is_safe_callback' => [$this, 'isUrlGenerationSafe']] )
+        ];
+    }
+    
+    public function isUrlGenerationSafe(\Twig_Node $argsNode)
+    {
+        return $this->originalExtension->isUrlGenerationSafe($argsNode);
+    }
+    
+    /**
+     * Return the return path if it exists, or generate the path if not.
+     * 
+     * @param string $name
+     * @param array $parameters
+     * @param bool $relative
+     * @return string
+     */
+    public function getReturnPathOr($name, $parameters = [], $relative = false)
+    {
+        $request = $this->requestStack->getCurrentRequest();
+        
+        if ($request->query->has('returnPath')) {
+            return $request->query->get('returnPath');
+        }
+        
+        return $this->originalExtension->getPath($name, $parameters, $relative);
+    }
+    
+    /**
+     * Build an url with a returnPath parameter to current page
+     * 
+     * @param string $name
+     * @param array $parameters
+     * @param bool $relative
+     * @return string
+     */
+    public function getPathAddReturnPath($name, $parameters = [], $relative = false)
+    {
+        $request = $this->requestStack->getCurrentRequest();
+        
+        $parameters['returnPath'] = $request->getRequestUri();
+        
+        return $this->originalExtension->getPath($name, $parameters, $relative);
+    }
+    
+    /**
+     * Build an url with a returnPath parameter to current page
+     * 
+     * @param string $name
+     * @param array $parameters
+     * @param bool $relative
+     * @return string
+     */
+    public function getPathForwardReturnPath($name, $parameters = [], $relative = false)
+    {
+        $request = $this->requestStack->getCurrentRequest();
+        
+        if ($request->query->has('returnPath')) {
+            $parameters['returnPath'] = $request->query->get('returnPath');
+        }
+        
+        return $this->originalExtension
+            ->getPath(
+                $name, 
+                $parameters,
+                $relative
+            );
+    }
+
+}