Sensor and Data Acquisition/Aggregation Unit belong to item group

bt5/erp5_wendelin/PortalTypeTemplateItem/portal_types/Data%20Acquisition%20Unit.xml

@@ -26,6 +26,14 @@ DAU1\n
             <key> <string>factory</string> </key>
             <value> <string>addXMLObject</string> </value>
         </item>
+        <item>
+            <key> <string>group_list</string> </key>
+            <value>
+              <tuple>
+                <string>item</string>
+              </tuple>
+            </value>
+        </item>
         <item>
             <key> <string>id</string> </key>
             <value> <string>Data Acquisition Unit</string> </value>

bt5/erp5_wendelin/PortalTypeTemplateItem/portal_types/Data%20Aggregation%20Unit.xml

@@ -28,6 +28,14 @@ Data Aggregation Unit 1\n
             <key> <string>factory</string> </key>
             <value> <string>addXMLObject</string> </value>
         </item>
+        <item>
+            <key> <string>group_list</string> </key>
+            <value>
+              <tuple>
+                <string>item</string>
+              </tuple>
+            </value>
+        </item>
         <item>
             <key> <string>id</string> </key>
             <value> <string>Data Aggregation Unit</string> </value>

bt5/erp5_wendelin/PortalTypeTemplateItem/portal_types/Sensor.xml

@@ -22,6 +22,14 @@
             <key> <string>factory</string> </key>
             <value> <string>addXMLObject</string> </value>
         </item>
+        <item>
+            <key> <string>group_list</string> </key>
+            <value>
+              <tuple>
+                <string>item</string>
+              </tuple>
+            </value>
+        </item>
         <item>
             <key> <string>id</string> </key>
             <value> <string>Sensor</string> </value>