diff --git a/lib/Alchemy/Phrasea/Controller/Admin/Fields.php b/lib/Alchemy/Phrasea/Controller/Admin/Fields.php
index 8e2080745e..015dd54d8d 100644
--- a/lib/Alchemy/Phrasea/Controller/Admin/Fields.php
+++ b/lib/Alchemy/Phrasea/Controller/Admin/Fields.php
@@ -326,6 +326,7 @@ class Fields implements ControllerProviderInterface
             ->set_thumbtitle($data['thumbtitle'])
             ->set_tag(\databox_field::loadClassFromTagName($data['tag']))
             ->set_business($data['business'])
+            ->set_aggregable($data['aggregable'])
             ->set_indexable($data['indexable'])
             ->set_required($data['required'])
             ->set_separator($data['separator'])
@@ -366,7 +367,7 @@ class Fields implements ControllerProviderInterface
     private function getMandatoryFieldProperties()
     {
         return [
-            'name', 'multi', 'thumbtitle', 'tag', 'business', 'indexable',
+            'name', 'multi', 'thumbtitle', 'tag', 'business', 'indexable', 'aggregable',
             'required', 'separator', 'readonly', 'type', 'tbranch', 'report',
             'vocabulary-type', 'vocabulary-restricted', 'dces-element', 'labels'
         ];
diff --git a/lib/classes/databox.php b/lib/classes/databox.php
index 2e3a14874a..50067011fa 100644
--- a/lib/classes/databox.php
+++ b/lib/classes/databox.php
@@ -986,6 +986,7 @@ class databox extends base
                 ->set_separator(isset($field['separator']) ? (string) $field['separator'] : '')
                 ->set_required((isset($field['required']) && (string) $field['required'] == 1))
                 ->set_business((isset($field['business']) && (string) $field['business'] == 1))
+                ->set_aggregable((isset($field['aggregable']) && (string) $field['aggregable'] == 1))
                 ->set_type($type)
                 ->set_tbranch(isset($field['tbranch']) ? (string) $field['tbranch'] : '')
                 ->set_thumbtitle(isset($field['thumbtitle']) ? (string) $field['thumbtitle'] : (isset($field['thumbTitle']) ? $field['thumbTitle'] : '0'))
diff --git a/lib/classes/databox/field.php b/lib/classes/databox/field.php
index f521ade653..193ff36a4f 100644
--- a/lib/classes/databox/field.php
+++ b/lib/classes/databox/field.php
@@ -117,6 +117,9 @@ class databox_field implements cache_cacheableInterface
      * @var boolean
      */
     protected $Business;
+
+    protected $aggregable;
+
     protected $renamed = false;
 
     /**
@@ -180,7 +183,7 @@ class databox_field implements cache_cacheableInterface
 
         $sql = "SELECT `thumbtitle`, `separator`, `dces_element`, `tbranch`,
                 `type`, `report`, `multi`, `required`, `readonly`, `indexable`,
-                `name`, `src`, `business`, `VocabularyControlType`,
+                `name`, `src`, `business`, `aggregable`,  `VocabularyControlType`,
                 `RestrictToVocabularyControl`, `sorter`,
                 `label_en`, `label_fr`, `label_de`, `label_nl`
               FROM metadatas_structure WHERE id=:id";
@@ -214,6 +217,7 @@ class databox_field implements cache_cacheableInterface
         $this->multi = (Boolean) $row['multi'];
         $this->Business = (Boolean) $row['business'];
         $this->report = (Boolean) $row['report'];
+        $this->aggregable = (Boolean) $row['aggregable'];
         $this->position = (Int) $row['sorter'];
         $this->type = $row['type'] ? : self::TYPE_STRING;
         $this->tbranch = $row['tbranch'];
@@ -261,6 +265,11 @@ class databox_field implements cache_cacheableInterface
         return $this->Business;
     }
 
+    public function isAggregable()
+    {
+        return $this->aggregable;
+    }
+
     /**
      *
      * @param Application $app
@@ -370,6 +379,7 @@ class databox_field implements cache_cacheableInterface
           `separator` = :separator,
           `multi` = :multi,
           `business` = :business,
+          `aggregable` = :aggregable,
           `report` = :report,
           `type` = :type,
           `tbranch` = :tbranch,
@@ -392,6 +402,7 @@ class databox_field implements cache_cacheableInterface
             ':separator'             => $this->separator,
             ':multi'                 => $this->multi ? '1' : '0',
             ':business'              => $this->Business ? '1' : '0',
+            ':aggregable'            => $this->aggregable ? '1' : '0',
             ':report'                => $this->report ? '1' : '0',
             ':type'                  => $this->type,
             ':tbranch'               => $this->tbranch,
@@ -443,6 +454,7 @@ class databox_field implements cache_cacheableInterface
         $meta->setAttribute('multi', $this->multi ? '1' : '0');
         $meta->setAttribute('report', $this->report ? '1' : '0');
         $meta->setAttribute('business', $this->Business ? '1' : '0');
+        $meta->setAttribute('aggregable', $this->aggregable ? '1' : '0');
         $meta->setAttribute('type', $this->type);
         $meta->setAttribute('tbranch', $this->tbranch);
         if ($this->multi) {
@@ -601,6 +613,7 @@ class databox_field implements cache_cacheableInterface
     {
         $connbas = $this->get_connection();
 
+
         if (null !== $DCES_element) {
             $sql = 'UPDATE metadatas_structure
                SET dces_element = null WHERE dces_element = :dces_element';
@@ -695,6 +708,14 @@ class databox_field implements cache_cacheableInterface
         return $this;
     }
 
+    public function set_aggregable($boolean)
+    {
+        $this->aggregable = ! ! $boolean;
+
+
+        return $this;
+    }
+
     /**
      *
      * @param  boolean       $required
@@ -932,6 +953,7 @@ class databox_field implements cache_cacheableInterface
             'name'                  => $this->name,
             'tag'                   => $this->tag->getTagname(),
             'business'              => $this->Business,
+            'aggregable'            => $this->aggregable,
             'type'                  => $this->type,
             'sorter'                => $this->position,
             'thumbtitle'            => $this->thumbtitle,
@@ -975,11 +997,11 @@ class databox_field implements cache_cacheableInterface
 
         $sql = "INSERT INTO metadatas_structure
         (`id`, `name`, `src`, `readonly`, `indexable`, `type`, `tbranch`,
-          `thumbtitle`, `multi`, `business`,
+          `thumbtitle`, `multi`, `business`, `aggregable`,
           `report`, `sorter`)
         VALUES (null, :name, '', 0, 1, 'string', '',
           null, :multi,
-          0, 1, :sorter)";
+          0, 0, 1, :sorter)";
 
         $name = self::generateName($name);
 
diff --git a/lib/conf.d/bases_structure.xml b/lib/conf.d/bases_structure.xml
index f87ffc59ba..d1b9d8f122 100644
--- a/lib/conf.d/bases_structure.xml
+++ b/lib/conf.d/bases_structure.xml
@@ -2654,6 +2654,14 @@
             <default></default>
             <comment></comment>
           </field>
+          <field>
+            <name>aggregable</name>
+            <type>int(1) unsigned</type>
+            <null></null>
+            <extra></extra>
+            <default>0</default>
+            <comment></comment>
+          </field>
           <field>
             <name>indexable</name>
             <type>int(1) unsigned</type>
diff --git a/templates/web/admin/fields/templates.html.twig b/templates/web/admin/fields/templates.html.twig
index a03479166a..abd2e20672 100644
--- a/templates/web/admin/fields/templates.html.twig
+++ b/templates/web/admin/fields/templates.html.twig
@@ -176,6 +176,14 @@
                         </label>
                     </td>
                 </tr>
+                <tr>
+                    <td colspan="2">
+                        <label for="aggregable" class="checkbox">
+                            <input id="aggregable" type="checkbox" <%= field.aggregable ? "checked='checked'" : "" %> />
+                                {% trans %}Aggregable fields{% endtrans %}
+                            </label>
+                    </td>
+                </tr>
                 <tr>
                     <td><label for="separator">{% trans %}Separator{% endtrans %}</label></td>
                     <td><input id="separator" type="text" value="<%= field.separator %>" /></td>
diff --git a/tests/Alchemy/Tests/Phrasea/Controller/Admin/FieldsTest.php b/tests/Alchemy/Tests/Phrasea/Controller/Admin/FieldsTest.php
index 92d401a199..935e5e8467 100644
--- a/tests/Alchemy/Tests/Phrasea/Controller/Admin/FieldsTest.php
+++ b/tests/Alchemy/Tests/Phrasea/Controller/Admin/FieldsTest.php
@@ -221,6 +221,7 @@ class FieldsTest extends \PhraseanetAuthenticatedWebTestCase
             'thumbtitle' => false,
             'tag' => 'XMP:XMP',
             'business' => false,
+            'aggregable' => false,
             'indexable' => true,
             'required' => true,
             'labels' => [