Index: MsgDefs.h
===================================================================
diff -u -rb2e6bfb639ed0bea5f7494eac096ce0316fc0342 -r1e879d0eb4a72396680e198d8b77393ca0e06921
--- MsgDefs.h	(.../MsgDefs.h)	(revision b2e6bfb639ed0bea5f7494eac096ce0316fc0342)
+++ MsgDefs.h	(.../MsgDefs.h)	(revision 1e879d0eb4a72396680e198d8b77393ca0e06921)
@@ -312,6 +312,10 @@
     MSG_ID_TD_SYRINGE_PUMP_FORCE_SENSOR_CALIBRATION_REQUEST = 0x8060,               ///< TD set syringe pump force sensor DAC calibration request
     MSG_ID_TD_GET_ALARM_PROPERTIES_REQUEST = 0x8061,                                ///< TD send alarm table properties request
     MSG_ID_TD_ALARM_PROPERTIES_RESPONSE = 0x8062,                                   ///< TD send alarm table properties response to Dialin
+    MSG_ID_TD_HDF_START_STOP_OVERRIDE_REQUEST = 0x8063,
+    MSG_ID_TD_HDF_CURRENT_RATE_OVERRIDE_REQUEST = 0x8064,
+    MSG_ID_TD_HDF_TARGET_TMP_OVERRIDE_REQUEST = 0x8065,
+    MSG_ID_TD_HDF_PUBLISH_INTERVAL_OVERRIDE_REQUEST = 0x8066,
 
     MSG_ID_FIRST_DD_TESTER_MESSAGE = 0xA000,                                            ///< First DD test message ID
     MSG_ID_DD_TESTER_LOGIN_REQUEST = MSG_ID_FIRST_DD_TESTER_MESSAGE,                    ///< DD tester log-in