diff --git a/openpype/tools/project_manager/project_manager/constants.py b/openpype/tools/project_manager/project_manager/constants.py
index 61d1944979..49ae2f7883 100644
--- a/openpype/tools/project_manager/project_manager/constants.py
+++ b/openpype/tools/project_manager/project_manager/constants.py
@@ -3,3 +3,4 @@ from Qt import QtCore
 
 IDENTIFIER_ROLE = QtCore.Qt.UserRole + 1
 DUPLICATED_ROLE = QtCore.Qt.UserRole + 2
+HIERARCHY_CHANGE_ABLE_ROLE = QtCore.Qt.UserRole + 3
diff --git a/openpype/tools/project_manager/project_manager/model.py b/openpype/tools/project_manager/project_manager/model.py
index 3f400fc8ee..c397906e71 100644
--- a/openpype/tools/project_manager/project_manager/model.py
+++ b/openpype/tools/project_manager/project_manager/model.py
@@ -5,7 +5,8 @@ from uuid import uuid4
 
 from .constants import (
     IDENTIFIER_ROLE,
-    DUPLICATED_ROLE
+    DUPLICATED_ROLE,
+    HIERARCHY_CHANGE_ABLE_ROLE
 )
 from pymongo import UpdateOne
 from avalon.vendor import qtawesome