Index: firmware/App/Services/SystemCommMessages.h
===================================================================
diff -u -r059eb49a6f8fd2e2277b98b4aee986eb4519820a -r608780a6e5449b5a9710ac07299ec028117c9f4d
--- firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 059eb49a6f8fd2e2277b98b4aee986eb4519820a)
+++ firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 608780a6e5449b5a9710ac07299ec028117c9f4d)
@@ -7,8 +7,8 @@
 *
 * @file    SystemCommMessages.h
 *
-* @author  (last)      Michael Garthwaite
-* @date    (last)      07-Sep-2022
+* @author  (last)      Dara Navaei
+* @date    (last)      21-Sep-2022
 *
 * @author  (original)  Dara Navaei
 * @date    (original)  05-Nov-2019
@@ -154,6 +154,12 @@
 // MSG_ID_DG_SCHEDULED_RUNS_INFO
 void handleDGScheduledRunsRequest( MESSAGE_T *message );
 
+// MSG_ID_HD_OP_MODE
+BOOL handleSetHDOperationMode( MESSAGE_T *message );
+
+// MSG_ID_HD_REQUEST_DG_USAGE_INFO
+void handleHDRequestDGUsageInfo( MESSAGE_T * message );
+
 // MSG_ID_UI_REQUEST_SERVICE_MODE
 void handleServiceModeRequest( MESSAGE_T *message );