--- a/src/pyams_content/shared/common/interfaces/__init__.py	Thu Feb 14 17:44:38 2019 +0100
+++ b/src/pyams_content/shared/common/interfaces/__init__.py	Fri Feb 15 12:53:15 2019 +0100
@@ -14,19 +14,18 @@
 
 from zope.container.constraints import containers, contains
 from zope.container.interfaces import IContainer
-from zope.interface import Interface, Attribute
-from zope.schema import Choice, Bool, Text, TextLine
+from zope.interface import Attribute, Interface
+from zope.schema import Bool, Choice, Text, TextLine
 
-from pyams_content.interfaces import IBaseContent, MANAGE_CONTENT_PERMISSION, OWNER_ROLE, MANAGER_ROLE, \
-    READER_ROLE, GUEST_ROLE, WEBMASTER_ROLE, PILOT_ROLE, CONTRIBUTOR_ROLE
+from pyams_content import _
+from pyams_content.interfaces import CONTRIBUTOR_ROLE, GUEST_ROLE, IBaseContent, MANAGER_ROLE, \
+    MANAGE_CONTENT_PERMISSION, OWNER_ROLE, PILOT_ROLE, READER_ROLE, WEBMASTER_ROLE
 from pyams_i18n.schema import I18nTextField
-from pyams_portal.interfaces import IPortalContext, DESIGNER_ROLE
+from pyams_portal.interfaces import DESIGNER_ROLE, IPortalContext
 from pyams_security.schema import Principal, PrincipalsSet
 from pyams_utils.schema import TextLineListField
 from pyams_workflow.interfaces import IWorkflowManagedContent
 
-from pyams_content import _
-
 
 class IDeletableElement(Interface):
     """Deletable element interface"""
@@ -234,6 +233,8 @@
 
 CONTENT_TYPES_VOCABULARY = 'PyAMS content types'
 
+SHARED_CONTENT_TYPES_VOCABULARY = 'PyAMS shared content types'
+
 
 #
 # Generic restrictions interfaces