diff -r e5d6ea4dc839 -r 8106bd960bcd src/pyams_content/shared/common/zmi/manager.py
--- a/src/pyams_content/shared/common/zmi/manager.py	Tue Nov 15 09:49:27 2016 +0100
+++ b/src/pyams_content/shared/common/zmi/manager.py	Tue Dec 20 17:14:08 2016 +0100
@@ -20,7 +20,7 @@
 from pyams_content.shared.common.interfaces import ISharedTool
 from pyams_form.interfaces.form import IWidgetForm, IFormHelp
 from pyams_i18n.interfaces import II18n, II18nManager
-from pyams_skin.interfaces import IInnerPage, IPageHeader, IContentTitle, IUserSkinnable
+from pyams_skin.interfaces import IInnerPage, IPageHeader, IContentTitle
 from pyams_skin.interfaces.viewlet import IMenuHeader, IBreadcrumbItem
 from pyams_skin.layer import IPyAMSLayer
 from pyams_utils.interfaces import VIEW_SYSTEM_PERMISSION
@@ -99,14 +99,7 @@
 
     legend = _("Shared tool properties")
 
-    @property
-    def fields(self):
-        fields = field.Fields(ISharedTool).omit('__parent__', '__name__')
-        if IUserSkinnable.providedBy(self.context):
-            fields += field.Fields(IUserSkinnable)
-            if not self.getContent().can_inherit_skin:
-                fields = fields.omit('inherit_skin')
-        return fields
+    fields = field.Fields(ISharedTool).omit('__parent__', '__name__')
 
     ajax_handler = 'properties.json'
     edit_permission = MANAGE_TOOL_PERMISSION