diff --git a/bt5/erp5_trade/SkinTemplateItem/portal_skins/erp5_trade/OrderLine_view.xml b/bt5/erp5_trade/SkinTemplateItem/portal_skins/erp5_trade/OrderLine_view.xml
index a0998e18c347250eb9db9d9302ee51d5a97aac2f..1f13802128f7f0e7403244f01c13ce1a043a2872 100644
--- a/bt5/erp5_trade/SkinTemplateItem/portal_skins/erp5_trade/OrderLine_view.xml
+++ b/bt5/erp5_trade/SkinTemplateItem/portal_skins/erp5_trade/OrderLine_view.xml
@@ -130,6 +130,7 @@
                         <string>my_variation_category_list</string>
                         <string>my_amortisation_method</string>
                         <string>my_source_trade_title_list</string>
+                        <string>my_base_contribution_list</string>
                       </list>
                     </value>
                 </item>
diff --git a/bt5/erp5_trade/SkinTemplateItem/portal_skins/erp5_trade/OrderLine_view/my_base_contribution_list.xml b/bt5/erp5_trade/SkinTemplateItem/portal_skins/erp5_trade/OrderLine_view/my_base_contribution_list.xml
new file mode 100644
index 0000000000000000000000000000000000000000..55b85d46bf0618ac23140b82048ff0057d6d918e
--- /dev/null
+++ b/bt5/erp5_trade/SkinTemplateItem/portal_skins/erp5_trade/OrderLine_view/my_base_contribution_list.xml
@@ -0,0 +1,99 @@
+<?xml version="1.0"?>
+<ZopeData>
+  <record id="1" aka="AAAAAAAAAAE=">
+    <pickle>
+      <tuple>
+        <global name="ProxyField" module="Products.ERP5Form.ProxyField"/>
+        <tuple/>
+      </tuple>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>_owner</string> </key>
+            <value>
+              <none/>
+            </value>
+        </item>
+        <item>
+            <key> <string>delegated_list</string> </key>
+            <value>
+              <list/>
+            </value>
+        </item>
+        <item>
+            <key> <string>id</string> </key>
+            <value> <string>my_base_contribution_list</string> </value>
+        </item>
+        <item>
+            <key> <string>message_values</string> </key>
+            <value>
+              <dictionary>
+                <item>
+                    <key> <string>external_validator_failed</string> </key>
+                    <value> <string>The input failed the external validator.</string> </value>
+                </item>
+              </dictionary>
+            </value>
+        </item>
+        <item>
+            <key> <string>overrides</string> </key>
+            <value>
+              <dictionary>
+                <item>
+                    <key> <string>field_id</string> </key>
+                    <value> <string></string> </value>
+                </item>
+                <item>
+                    <key> <string>form_id</string> </key>
+                    <value> <string></string> </value>
+                </item>
+                <item>
+                    <key> <string>target</string> </key>
+                    <value> <string></string> </value>
+                </item>
+              </dictionary>
+            </value>
+        </item>
+        <item>
+            <key> <string>tales</string> </key>
+            <value>
+              <dictionary>
+                <item>
+                    <key> <string>field_id</string> </key>
+                    <value> <string></string> </value>
+                </item>
+                <item>
+                    <key> <string>form_id</string> </key>
+                    <value> <string></string> </value>
+                </item>
+                <item>
+                    <key> <string>target</string> </key>
+                    <value> <string></string> </value>
+                </item>
+              </dictionary>
+            </value>
+        </item>
+        <item>
+            <key> <string>values</string> </key>
+            <value>
+              <dictionary>
+                <item>
+                    <key> <string>field_id</string> </key>
+                    <value> <string>my_base_contribution_list</string> </value>
+                </item>
+                <item>
+                    <key> <string>form_id</string> </key>
+                    <value> <string>Tax_viewFieldLibrary</string> </value>
+                </item>
+                <item>
+                    <key> <string>target</string> </key>
+                    <value> <string>Click to edit the target</string> </value>
+                </item>
+              </dictionary>
+            </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>
diff --git a/bt5/erp5_trade/bt/revision b/bt5/erp5_trade/bt/revision
index 194ba8cc7594b96181da7c25c73002be08d56ff5..9d239ff80782ef04598a120993de2cc0f9611708 100644
--- a/bt5/erp5_trade/bt/revision
+++ b/bt5/erp5_trade/bt/revision
@@ -1 +1 @@
-320
\ No newline at end of file
+321
\ No newline at end of file