Hello! I'm not really familiar with how and if class parameters can be used during runtime or if it is static. Class %TimeStamp has parameter XMLTIMEZONE [Constraint = "IGNORE, UTC", Flags = ENUM] = "UTC"; I wonder if that parameter can be changed to IGNORE during runtime and in that case how? For the moment I have created my own type that inherits from %TimeStamp in order to change to IGNORE   Greetings Michael