Indicates whether or not the Revit journal will include custom data populated by the application associated with this command. 
   Namespace:   Autodesk.Revit.UI.Events  
  Assembly:   RevitAPIUI  (in RevitAPIUI.dll) Version: 17.0.0.0 (17.0.1090.0) 
  Since:  2017 
Syntax
Remarks
 For details about the use of journal data associated to a command, see  JournalData  . The default value is false.