Index: firmware/App/Services/Messaging.c
===================================================================
diff -u -r313982ccc772f1bbe182877dff7e00381b04e0f4 -r322747d530c1b8205be257557e53dcfe9caad50a
--- firmware/App/Services/Messaging.c	(.../Messaging.c)	(revision 313982ccc772f1bbe182877dff7e00381b04e0f4)
+++ firmware/App/Services/Messaging.c	(.../Messaging.c)	(revision 322747d530c1b8205be257557e53dcfe9caad50a)
@@ -141,11 +141,12 @@
     MSG_ID_DD_DIAL_DELIVERY_GOOD_TO_DELIVER_OVERRIDE_REQUEST,
     MSG_ID_DD_HEATERS_TARGET_TEMPERATURE_OVERRIDE_REQUEST,                            //55
     MSG_ID_DD_BC_VALVE_STATES_OVERRIDE_REQUEST,
+    MSG_ID_DD_BC_SWITCH_ONLY_START_STOP_OVERRIDE_REQUEST,
+    MSG_ID_DD_HYD_CHAMBER_TARGET_TEMP_OVERRIDE_REQUEST,
 #ifdef __PUMPTEST__
     MSG_ID_DD_PISTON_PUMP_DATA_PUBLISH_OVERRIDE_REQUEST,
     MSG_ID_DD_PISTON_PUMP_START_STOP_OVERRIDE_REQUEST,
 #endif
-    MSG_ID_DD_BC_SWITCH_ONLY_START_STOP_OVERRIDE_REQUEST,
 };
 
 /// Message handling function table
@@ -206,11 +207,12 @@
     &testDialGoodToDeliverStatusOverride,
     &testHeaterTargetTemperatureOverride,                                              //55
     &testBCValveStatesOverride,
+    &testBCSwitchOnlyStartStopOverride,
+    &testGenDHydChamberFluidTempOverride,
 #ifdef __PUMPTEST__
     &testDDPistonPumpControlDataPublishIntervalOverride,
     &testDDPistonPumpStartStopOverride,
 #endif
-    &testBCSwitchOnlyStartStopOverride,
 };
 
 #define NUM_OF_FUNCTION_HANDLERS (sizeof(MSG_FUNCTION_HANDLERS) / sizeof(MsgFuncPtr))