Create generic OffsetIndex (derived from SortIndex).

bt5/erp5_wendelin/PortalTypePropertySheetTemplateItem/property_sheet_list.xml

@@ -6,7 +6,7 @@
   <item>DefaultImage</item>
  </portal_type>
  <portal_type id="Data Stream">
-  <item>DataStream</item>
+  <item>OffsetIndex</item>
  </portal_type>
  <portal_type id="Ingestion Policy">
   <item>IngestionPolicy</item>

bt5/erp5_wendelin/PropertySheetTemplateItem/portal_property_sheets/DataStream.xml → bt5/erp5_wendelin/PropertySheetTemplateItem/portal_property_sheets/OffsetIndex.xml

@@ -32,7 +32,7 @@
         </item>
         <item>
             <key> <string>id</string> </key>
-            <value> <string>DataStream</string> </value>
+            <value> <string>OffsetIndex</string> </value>
         </item>
         <item>
             <key> <string>portal_type</string> </key>

bt5/erp5_wendelin/PropertySheetTemplateItem/portal_property_sheets/DataStream/offset_property.xml → bt5/erp5_wendelin/PropertySheetTemplateItem/portal_property_sheets/OffsetIndex/int_offset_index_property.xml

@@ -38,7 +38,7 @@ Usually used when processed by activities.</string> </value>
         </item>
         <item>
             <key> <string>id</string> </key>
-            <value> <string>offset_property</string> </value>
+            <value> <string>int_offset_index_property</string> </value>
         </item>
         <item>
             <key> <string>mode</string> </key>

bt5/erp5_wendelin/bt/template_portal_type_property_sheet_list

 Data Array | DataArray
 Data Product | DefaultImage
-Data Stream | DataStream
+Data Stream | OffsetIndex
 Ingestion Policy | IngestionPolicy
\ No newline at end of file

bt5/erp5_wendelin/bt/template_property_sheet_id_list

 IngestionPolicy
 DataArray
-DataStream
+OffsetIndex
\ No newline at end of file