diff --git a/bt5/erp5_forge/ExtensionTemplateItem/ProxyFieldUtils.py b/bt5/erp5_forge/ExtensionTemplateItem/ProxyFieldUtils.py
new file mode 100644
index 0000000000000000000000000000000000000000..3b351d8ec88dccf3a0f56d979fd9b0f8dedb841c
--- /dev/null
+++ b/bt5/erp5_forge/ExtensionTemplateItem/ProxyFieldUtils.py
@@ -0,0 +1,38 @@
+### External Method
+
+from Products.Formulator.MethodField import Method
+
+#
+# This function is useful to check if two fields is equal or not.
+#
+def get_field_data(field):
+  value_dict = {}
+  tales_dict = {}
+
+  if field.meta_type=='ProxyField':
+    template_field = field.getRecursiveTemplateField()
+    for ui_field_id in template_field.form.fields.keys():
+      value = field.get_recursive_orig_value(ui_field_id)
+      if isinstance(value, Method):
+        value = value.method_name
+      tales = field.get_recursive_tales(ui_field_id)
+      if tales:
+        tales_text = tales._text
+      else:
+        tales_text = ''
+      value_dict[ui_field_id] = value
+      tales_dict[ui_field_id] = tales_text
+  else:
+    for ui_field_id in field.form.fields.keys():
+      value = field.get_orig_value(ui_field_id)
+      if isinstance(value, Method):
+        value = value.method_name
+      tales = field.get_tales(ui_field_id)
+      if tales:
+        tales_text = tales._text
+      else:
+        tales_text = ''
+      value_dict[ui_field_id] = value
+      tales_dict[ui_field_id] = tales_text
+
+  return value_dict, tales_dict
diff --git a/bt5/erp5_forge/SkinTemplateItem/portal_skins/erp5_toolbox/Base_getFieldData.xml b/bt5/erp5_forge/SkinTemplateItem/portal_skins/erp5_toolbox/Base_getFieldData.xml
index d330a2e5f317a7da30253c376b5a9b8f15a14f7f..1b55e7b26516cbec484400be92dcc171af4eb487 100644
--- a/bt5/erp5_forge/SkinTemplateItem/portal_skins/erp5_toolbox/Base_getFieldData.xml
+++ b/bt5/erp5_forge/SkinTemplateItem/portal_skins/erp5_toolbox/Base_getFieldData.xml
@@ -15,7 +15,7 @@
         </item>
         <item>
             <key> <string>_module</string> </key>
-            <value> <string>proxy_field_util</string> </value>
+            <value> <string>ProxyFieldUtils</string> </value>
         </item>
         <item>
             <key> <string>id</string> </key>
diff --git a/bt5/erp5_forge/bt/revision b/bt5/erp5_forge/bt/revision
index 28621d35adae761a9610140bce7572be86f10c78..be8a1b91d5276031b7c628ada0b6c2f7377cb964 100644
--- a/bt5/erp5_forge/bt/revision
+++ b/bt5/erp5_forge/bt/revision
@@ -1 +1 @@
-542
\ No newline at end of file
+538
\ No newline at end of file
diff --git a/bt5/erp5_forge/bt/template_extension_id_list b/bt5/erp5_forge/bt/template_extension_id_list
index ae44ca2d780a824500f3bf2ff48a3e628abb8eda..5f062267328b35520a1b897196bdbcf32025a7d8 100644
--- a/bt5/erp5_forge/bt/template_extension_id_list
+++ b/bt5/erp5_forge/bt/template_extension_id_list
@@ -1,4 +1,5 @@
 Glossary
 PythonScriptParserUtility
 Security
-SecurityCloner
\ No newline at end of file
+SecurityCloner
+ProxyFieldUtils
\ No newline at end of file