--- a/src/pyams_content/zmi/interfaces/__init__.py	Sun Nov 26 09:49:57 2017 +0100
+++ b/src/pyams_content/zmi/interfaces/__init__.py	Sun Nov 26 09:50:28 2017 +0100
@@ -26,6 +26,14 @@
 # Custom menus interfaces
 #
 
+class ISiteTreeMenu(IMenuItem):
+    """Site tree menu marker interface"""
+
+
+class ISiteTreeTable(Interface):
+    """Site tree table view marker interface"""
+
+
 class IDashboardMenu(IMenuItem):
     """Dashboard menu"""