Index: leahi_dialin/common/msg_ids.py
===================================================================
diff -u -r3ab5837d5ff3f12c0eaaa607da376795834d6bd0 -r6dcbbc4df1069665696caea1cb96cbc163ae69b0
--- leahi_dialin/common/msg_ids.py	(.../msg_ids.py)	(revision 3ab5837d5ff3f12c0eaaa607da376795834d6bd0)
+++ leahi_dialin/common/msg_ids.py	(.../msg_ids.py)	(revision 6dcbbc4df1069665696caea1cb96cbc163ae69b0)
@@ -244,8 +244,8 @@
     MSG_ID_DD_PRE_GEND_MODE_DATA_PUBLISH_OVERRIDE_REQUEST = 0xA03D
     MSG_ID_DD_POST_GEND_MODE_DATA_PUBLISH_OVERRIDE_REQUEST = 0xA03E
     MSG_ID_DD_SEND_BLOOD_LEAK_EMB_MODE_RESPONSE = 0xA03F
-    MSG_ID_DD_STOP_PRE_GEN_DIALYSATE_MODE_OVERRIDE_REQUEST = 0xA040
-    MSG_ID_DD_STOP_GEN_DIALYSATE_MODE_OVERRIDE_REQUEST = 0xA041
+    MSG_ID_DD_SPENT_CHAMB_FILL_DATA_PUBLISH_OVERRIDE_REQUEST = 0xA040
+    MSG_ID_DD_AVAILABLE_TO_USE_4 = 0xA041
     MSG_ID_DD_SAFETY_SHUTDOWN_OVERRIDE_REQUEST = 0xA042
     MSG_ID_DD_ALARM_STATE_OVERRIDE_REQUEST = 0xA043
     MSG_ID_DD_BLOOD_LEAK_DATA_PUBLISH_INTERVAL_OVERRIDE_REQUEST = 0xA047
@@ -260,6 +260,9 @@
     MSG_ID_DD_PISTON_PUMP_DATA_PUBLISH_OVERRIDE_REQUEST = 0xAF00
     MSG_ID_DD_PISTON_PUMP_START_STOP_OVERRIDE_REQUEST = 0xAF01
     MSG_ID_DD_PISTON_PUMP_FILL_AFTER_DISPENSE_OVERRIDE_REQUEST = 0xAF02
+    # Placeholder message
+    MSG_ID_DD_ALARM_STATE_OVERRIDE_REQUEST = 0xAF03
+    MSG_ID_DD_STOP_GEN_DIALYSATE_MODE_OVERRIDE_REQUEST = 0xAF04
 
     MSG_ID_FP_TESTER_LOGIN_REQUEST = 0xB000
     MSG_ID_FP_SOFTWARE_RESET_REQUEST = 0xB001