diff --git a/project/signalo.qgs b/project/signalo.qgs
index 6dfa6c22..a329a373 100644
--- a/project/signalo.qgs
+++ b/project/signalo.qgs
@@ -1,5 +1,5 @@
 <!DOCTYPE qgis PUBLIC 'http://mrcc.com/qgis.dtd' 'SYSTEM'>
-<qgis saveUser="rouzauddenis" version="3.34.6-Prizren" projectname="Signalo - Demo" saveUserFull="Rouzaud Denis" saveDateTime="2024-11-06T10:26:50">
+<qgis saveUser="rouzauddenis" version="3.34.6-Prizren" projectname="Signalo - Demo" saveUserFull="Rouzaud Denis" saveDateTime="2024-11-06T10:53:16">
   <homePath path=""/>
   <title>Signalo - Demo</title>
   <transaction mode="AutomaticGroups"/>
@@ -190,9 +190,9 @@
   <snapping-settings scaleDependencyMode="0" tolerance="12" intersection-snapping="0" minScale="0" unit="1" maxScale="0" mode="2" self-snapping="0" type="1" enabled="1">
     <individual-layer-settings>
       <layer-setting id="vw_validation_74e4eac7_fc6b_4d7d_8b39_ab67b5148aab" tolerance="12" minScale="0" maxScale="0" units="1" type="1" enabled="0"/>
-      <layer-setting id="vw_sign_symbol_a4db15ac_b65f_46c3_b5d8_bcf3dbf10405" tolerance="12" minScale="0" maxScale="0" units="1" type="1" enabled="0"/>
-      <layer-setting id="support_347aa750_1661_498f_a7e8_017adc616ba0" tolerance="12" minScale="0" maxScale="0" units="1" type="1" enabled="0"/>
       <layer-setting id="vw_azimut_edit_b7acca0e_e618_4f1d_8de3_08e2eb5bf359" tolerance="12" minScale="0" maxScale="0" units="1" type="1" enabled="0"/>
+      <layer-setting id="support_347aa750_1661_498f_a7e8_017adc616ba0" tolerance="12" minScale="0" maxScale="0" units="1" type="1" enabled="0"/>
+      <layer-setting id="vw_sign_symbol_a4db15ac_b65f_46c3_b5d8_bcf3dbf10405" tolerance="12" minScale="0" maxScale="0" units="1" type="1" enabled="0"/>
     </individual-layer-settings>
   </snapping-settings>
   <relations>
@@ -223,10 +223,10 @@
   <mapcanvas name="theMapCanvas" annotationsVisible="1">
     <units>meters</units>
     <extent>
-      <xmin>2536327.06236626207828522</xmin>
-      <ymin>1151855.26788504840806127</ymin>
-      <xmax>2538590.94798724725842476</xmax>
-      <ymax>1153520.5571826477535069</ymax>
+      <xmin>2537213.714336599688977</xmin>
+      <ymin>1152209.79181023989804089</ymin>
+      <xmax>2537869.83258421765640378</xmax>
+      <ymax>1152692.4251577949617058</ymax>
     </extent>
     <rotation>0</rotation>
     <destinationsrs>
@@ -12242,7 +12242,7 @@ def my_form_open(dialog, layer, feature):
         <default applyOnUpdate="0" field="usr_support_3" expression=""/>
         <default applyOnUpdate="0" field="_creation_date" expression="now()"/>
         <default applyOnUpdate="0" field="_creation_user" expression=" @user_full_name "/>
-        <default applyOnUpdate="1" field="_last_modification_date" expression="now()"/>
+        <default applyOnUpdate="1" field="_last_modification_date" expression="@qgis_platform"/>
         <default applyOnUpdate="1" field="_last_modification_user" expression=" @user_full_name "/>
         <default applyOnUpdate="0" field="group_by_anchor" expression=""/>
         <default applyOnUpdate="0" field="picture_2" expression=""/>
@@ -18369,9 +18369,12 @@ END</previewExpression>
       </selection>
       <customproperties>
         <Option type="Map">
+          <Option name="dualview/previewExpressions" type="List">
+            <Option value="&quot;id&quot;" type="QString"/>
+          </Option>
           <Option name="embeddedWidgets/count" value="0" type="int"/>
-          <Option name="variableNames" type="invalid"/>
-          <Option name="variableValues" type="invalid"/>
+          <Option name="variableNames"/>
+          <Option name="variableValues"/>
         </Option>
       </customproperties>
       <blendMode>0</blendMode>
@@ -18458,27 +18461,39 @@ END</previewExpression>
         <field name="last_modification_date" configurationFlags="NoFlag">
           <editWidget type="DateTime">
             <config>
-              <Option/>
+              <Option type="Map">
+                <Option name="allow_null" value="true" type="bool"/>
+                <Option name="calendar_popup" value="true" type="bool"/>
+                <Option name="display_format" value="dd.MM.yyyy HH:mm:ss" type="QString"/>
+                <Option name="field_format" value="yyyy-MM-dd HH:mm:ss" type="QString"/>
+                <Option name="field_format_overwrite" value="false" type="bool"/>
+                <Option name="field_iso_format" value="false" type="bool"/>
+              </Option>
             </config>
           </editWidget>
         </field>
         <field name="needs_validation" configurationFlags="NoFlag">
           <editWidget type="CheckBox">
             <config>
-              <Option/>
+              <Option type="Map">
+                <Option name="AllowNullState" value="false" type="bool"/>
+                <Option name="CheckedState" value="" type="QString"/>
+                <Option name="TextDisplayMethod" value="0" type="int"/>
+                <Option name="UncheckedState" value="" type="QString"/>
+              </Option>
             </config>
           </editWidget>
         </field>
       </fieldConfiguration>
       <aliases>
         <alias name="" field="id" index="0"/>
-        <alias name="" field="last_modification_date" index="1"/>
-        <alias name="" field="needs_validation" index="2"/>
+        <alias name="dernière modification" field="last_modification_date" index="1"/>
+        <alias name="à contrôler" field="needs_validation" index="2"/>
       </aliases>
       <splitPolicies>
         <policy policy="Duplicate" field="id"/>
-        <policy policy="Duplicate" field="last_modification_date"/>
-        <policy policy="Duplicate" field="needs_validation"/>
+        <policy policy="DefaultValue" field="last_modification_date"/>
+        <policy policy="DefaultValue" field="needs_validation"/>
       </splitPolicies>
       <defaults>
         <default applyOnUpdate="0" field="id" expression=""/>
@@ -18502,8 +18517,8 @@ END</previewExpression>
       <attributetableconfig sortOrder="0" sortExpression="" actionWidgetStyle="dropDown">
         <columns>
           <column name="id" type="field" width="-1" hidden="0"/>
-          <column name="last_modification_date" type="field" width="-1" hidden="0"/>
-          <column name="needs_validation" type="field" width="-1" hidden="0"/>
+          <column name="last_modification_date" type="field" width="190" hidden="0"/>
+          <column name="needs_validation" type="field" width="135" hidden="0"/>
           <column type="actions" width="-1" hidden="1"/>
         </columns>
       </attributetableconfig>
@@ -18834,51 +18849,6 @@ def my_form_open(dialog, layer, feature):
         </LayoutItem>
         <GuideCollection visible="1"/>
       </PageCollection>
-      <LayoutItem zValue="2" itemRotation="0" mapUuid="" visibility="1" svgBorderColor="0,0,0,255" northOffset="0" referencePoint="7" uuid="{44494381-8e9f-4200-aff1-22c57d64a580}" excludeFromExports="0" northMode="0" position="148.5,150.814,mm" positionLock="false" resizeMode="0" anchorPoint="7" opacity="1" frameJoinStyle="miter" size="130.768,148.068,mm" templateUuid="{44494381-8e9f-4200-aff1-22c57d64a580}" positionOnPage="148.5,150.814,mm" groupUuid="" file="101.svg" pictureHeight="114.557" blendMode="0" pictureRotation="0" type="65640" svgBorderWidth="0.2" svgFillColor="255,255,255,255" mode="0" pictureWidth="130.768" frame="false" id="" background="false" outlineWidthM="0.3,mm">
-        <FrameColor red="0" alpha="255" blue="0" green="0"/>
-        <BackgroundColor red="255" alpha="255" blue="255" green="255"/>
-        <LayoutObject>
-          <dataDefinedProperties>
-            <Option type="Map">
-              <Option name="name" value="" type="QString"/>
-              <Option name="properties" type="Map">
-                <Option name="dataDefinedSource" type="Map">
-                  <Option name="active" value="true" type="bool"/>
-                  <Option name="expression" value="file_path(@project_path) ||'/images/official/editable/' ||   attribute(  get_feature_by_id( 'official_sign_02419ef5_80b5_48e3_869b_58a12167b0ae', coalesce(@atlas_featureid,1) ), 'img_fr')" type="QString"/>
-                  <Option name="type" value="3" type="int"/>
-                </Option>
-              </Option>
-              <Option name="type" value="collection" type="QString"/>
-            </Option>
-          </dataDefinedProperties>
-          <customproperties>
-            <Option type="Map">
-              <Option name="svg-dynamic-parameters" type="Map">
-                <Option name="text1" type="Map">
-                  <Option name="active" value="true" type="bool"/>
-                  <Option name="expression" value="default_inscription1" type="QString"/>
-                  <Option name="type" value="3" type="int"/>
-                </Option>
-                <Option name="text2" type="Map">
-                  <Option name="active" value="true" type="bool"/>
-                  <Option name="expression" value="default_inscription2" type="QString"/>
-                  <Option name="type" value="3" type="int"/>
-                </Option>
-                <Option name="text3" type="Map">
-                  <Option name="active" value="true" type="bool"/>
-                  <Option name="expression" value="default_inscription3" type="QString"/>
-                  <Option name="type" value="3" type="int"/>
-                </Option>
-                <Option name="text4" type="Map">
-                  <Option name="active" value="true" type="bool"/>
-                  <Option name="expression" value="default_inscription4" type="QString"/>
-                  <Option name="type" value="3" type="int"/>
-                </Option>
-              </Option>
-            </Option>
-          </customproperties>
-        </LayoutObject>
-      </LayoutItem>
       <LayoutItem zValue="2" itemRotation="0" visibility="1" referencePoint="0" uuid="{5b2fd107-099e-4f2c-8d9e-ca27d7141969}" excludeFromExports="0" marginX="0" marginY="0" position="24.986,142.228,mm" positionLock="false" labelText="([% &quot;id&quot;  || ') '  ||   &quot;value_fr&quot; %]&#xa;[%case when default_inscription1 is not null then '(dynamique)'  else '' end%]" opacity="1" valign="128" frameJoinStyle="miter" size="247.028,53.7715,mm" templateUuid="{5b2fd107-099e-4f2c-8d9e-ca27d7141969}" positionOnPage="24.986,142.228,mm" htmlState="0" groupUuid="" blendMode="0" halign="4" type="65641" frame="false" id="" background="false" outlineWidthM="0.3,mm">
         <FrameColor red="0" alpha="255" blue="0" green="0"/>
         <BackgroundColor red="255" alpha="255" blue="255" green="255"/>
@@ -18941,6 +18911,51 @@ def my_form_open(dialog, layer, feature):
           </dd_properties>
         </text-style>
       </LayoutItem>
+      <LayoutItem zValue="2" itemRotation="0" mapUuid="" visibility="1" svgBorderColor="0,0,0,255" northOffset="0" referencePoint="7" uuid="{44494381-8e9f-4200-aff1-22c57d64a580}" excludeFromExports="0" northMode="0" position="148.5,150.814,mm" positionLock="false" resizeMode="0" anchorPoint="7" opacity="1" frameJoinStyle="miter" size="130.768,148.068,mm" templateUuid="{44494381-8e9f-4200-aff1-22c57d64a580}" positionOnPage="148.5,150.814,mm" groupUuid="" file="101.svg" pictureHeight="114.557" blendMode="0" pictureRotation="0" type="65640" svgBorderWidth="0.2" svgFillColor="255,255,255,255" mode="0" pictureWidth="130.768" frame="false" id="" background="false" outlineWidthM="0.3,mm">
+        <FrameColor red="0" alpha="255" blue="0" green="0"/>
+        <BackgroundColor red="255" alpha="255" blue="255" green="255"/>
+        <LayoutObject>
+          <dataDefinedProperties>
+            <Option type="Map">
+              <Option name="name" value="" type="QString"/>
+              <Option name="properties" type="Map">
+                <Option name="dataDefinedSource" type="Map">
+                  <Option name="active" value="true" type="bool"/>
+                  <Option name="expression" value="file_path(@project_path) ||'/images/official/editable/' ||   attribute(  get_feature_by_id( 'official_sign_02419ef5_80b5_48e3_869b_58a12167b0ae', coalesce(@atlas_featureid,1) ), 'img_fr')" type="QString"/>
+                  <Option name="type" value="3" type="int"/>
+                </Option>
+              </Option>
+              <Option name="type" value="collection" type="QString"/>
+            </Option>
+          </dataDefinedProperties>
+          <customproperties>
+            <Option type="Map">
+              <Option name="svg-dynamic-parameters" type="Map">
+                <Option name="text1" type="Map">
+                  <Option name="active" value="true" type="bool"/>
+                  <Option name="expression" value="default_inscription1" type="QString"/>
+                  <Option name="type" value="3" type="int"/>
+                </Option>
+                <Option name="text2" type="Map">
+                  <Option name="active" value="true" type="bool"/>
+                  <Option name="expression" value="default_inscription2" type="QString"/>
+                  <Option name="type" value="3" type="int"/>
+                </Option>
+                <Option name="text3" type="Map">
+                  <Option name="active" value="true" type="bool"/>
+                  <Option name="expression" value="default_inscription3" type="QString"/>
+                  <Option name="type" value="3" type="int"/>
+                </Option>
+                <Option name="text4" type="Map">
+                  <Option name="active" value="true" type="bool"/>
+                  <Option name="expression" value="default_inscription4" type="QString"/>
+                  <Option name="type" value="3" type="int"/>
+                </Option>
+              </Option>
+            </Option>
+          </customproperties>
+        </LayoutObject>
+      </LayoutItem>
       <customproperties>
         <Option type="Map">
           <Option name="atlasRasterFormat" value="png" type="QString"/>
@@ -18965,7 +18980,7 @@ def my_form_open(dialog, layer, feature):
   <Sensors/>
   <ProjectViewSettings rotation="0" UseProjectScales="0">
     <Scales/>
-    <DefaultViewExtent ymin="1151699.83155695698224008" ymax="1153675.99351073917932808" xmin="2536327.06236626207828522" xmax="2538590.94798724725842476">
+    <DefaultViewExtent ymin="1152200.25260734488256276" ymax="1152701.96436068997718394" xmin="2537213.714336599688977" xmax="2537869.83258421765640378">
       <spatialrefsys nativeFormat="Wkt">
         <wkt>PROJCRS["CH1903+ / LV95",BASEGEOGCRS["CH1903+",DATUM["CH1903+",ELLIPSOID["Bessel 1841",6377397.155,299.1528128,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4150]],CONVERSION["Swiss Oblique Mercator 1995",METHOD["Hotine Oblique Mercator (variant B)",ID["EPSG",9815]],PARAMETER["Latitude of projection centre",46.9524055555556,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8811]],PARAMETER["Longitude of projection centre",7.43958333333333,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8812]],PARAMETER["Azimuth of initial line",90,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8813]],PARAMETER["Angle from Rectified to Skew Grid",90,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8814]],PARAMETER["Scale factor on initial line",1,SCALEUNIT["unity",1],ID["EPSG",8815]],PARAMETER["Easting at projection centre",2600000,LENGTHUNIT["metre",1],ID["EPSG",8816]],PARAMETER["Northing at projection centre",1200000,LENGTHUNIT["metre",1],ID["EPSG",8817]]],CS[Cartesian,2],AXIS["(E)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["(N)",north,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Cadastre, engineering survey, topographic mapping (large and medium scale)."],AREA["Liechtenstein; Switzerland."],BBOX[45.82,5.96,47.81,10.49]],ID["EPSG",2056]]</wkt>
         <proj4>+proj=somerc +lat_0=46.9524055555556 +lon_0=7.43958333333333 +k_0=1 +x_0=2600000 +y_0=1200000 +ellps=bessel +towgs84=674.374,15.056,405.346,0,0,0,0 +units=m +no_defs</proj4>
@@ -19030,7 +19045,7 @@ def my_form_open(dialog, layer, feature):
       </spatialrefsys>
     </CoordinateCustomCrs>
   </ProjectDisplaySettings>
-  <ProjectGpsSettings destinationFollowsActiveLayer="1" autoCommitFeatures="0" destinationLayerName="Support" autoAddTrackVertices="0" destinationLayer="support_347aa750_1661_498f_a7e8_017adc616ba0" destinationLayerSource="service='pg_signalo' sslmode=disable key='id' srid=2056 type=Point checkPrimaryKeyUnicity='1' table=&quot;signalo_db&quot;.&quot;support&quot; (geometry)" destinationLayerProvider="postgres">
+  <ProjectGpsSettings destinationFollowsActiveLayer="1" autoCommitFeatures="0" destinationLayerName="Outil Azimut" autoAddTrackVertices="0" destinationLayer="vw_azimut_edit_b7acca0e_e618_4f1d_8de3_08e2eb5bf359" destinationLayerSource="service='pg_signalo' sslmode=disable key='id' srid=2056 type=LineString checkPrimaryKeyUnicity='1' table=&quot;signalo_app&quot;.&quot;vw_azimut_edit&quot; (geometry)" destinationLayerProvider="postgres">
     <timeStampFields/>
   </ProjectGpsSettings>
 </qgis>
diff --git a/website/documentation/assets/images/printscreen/validation/validation-action.png b/website/documentation/assets/images/printscreen/validation/validation-action.png
new file mode 100644
index 00000000..ee603c1d
Binary files /dev/null and b/website/documentation/assets/images/printscreen/validation/validation-action.png differ
diff --git a/website/documentation/assets/images/printscreen/validation/validation-config.png b/website/documentation/assets/images/printscreen/validation/validation-config.png
new file mode 100644
index 00000000..fe88e8d0
Binary files /dev/null and b/website/documentation/assets/images/printscreen/validation/validation-config.png differ
diff --git a/website/documentation/assets/images/printscreen/validation/validation-layer.png b/website/documentation/assets/images/printscreen/validation/validation-layer.png
new file mode 100644
index 00000000..b253b157
Binary files /dev/null and b/website/documentation/assets/images/printscreen/validation/validation-layer.png differ
diff --git a/website/documentation/user-guide/validation.fr.md b/website/documentation/user-guide/validation.fr.md
new file mode 100644
index 00000000..262277db
--- /dev/null
+++ b/website/documentation/user-guide/validation.fr.md
@@ -0,0 +1,37 @@
+---
+title: Validation des changements
+tx_slug: documentation_user-guide_validation
+---
+
+# Validation des changements
+
+## Principe
+
+Il est possible de mettre en place un système de validation pour les données saisies sur le terrain (QField) et/ou sur QGIS.
+L'idée est que pour tout changement sur une des 4 tables principales (support, azimut, cadre, signal), le champ de validation sera défini comme vrai et signifie qu'un contrôle est nécessaire.
+Une vue regroupe ensuite les informations par support et permet de passer en revue ceux à contrôler.
+
+Attention, les suppressions d'éléments ne sont pas pris en compte dans ce système de validation.
+
+## Configuration
+
+Dans la configuration du projet, il faut définir la variable `signalo_validation` avec la valeur:
+
+* `any`: la validation est requise pour toute modification
+* `desktop`: la validation est requise pour les changements sur QGIS Desktop uniquement
+* `mobile`: la validation est requise pour les changements sur QField uniquement
+
+![Validation](../assets/images/printscreen/validation-config.png)
+
+## Validation des données
+
+La vue dénommée "Contrôles" dans le projet QGIS permet de passer en revue les supports nécessitant un contrôle, que ce soit au niveau du support, d'un azimut, d'un cadre ou d'un signal.
+
+![Validation](../assets/images/printscreen/validation-layer.png)
+
+Pour marquer un support comme contrôler, deux approches sont possibles:
+
+* soit éditer directement le champ "à contrôler" dans la vue
+* soit faire un clic droit sur le support avec l'outil d'identification et sélectionner "Marquer comme contrôlé".
+
+![Validation](../assets/images/printscreen/validation-action.png)