Index: AlarmDefs.h
===================================================================
diff -u -rfc1093b5c522659c74e7873b4fd6dd1df3b8e1b5 -r9ebc7a5eb4d5ca6fa80dbdff43692a2b95278c9f
--- AlarmDefs.h	(.../AlarmDefs.h)	(revision fc1093b5c522659c74e7873b4fd6dd1df3b8e1b5)
+++ AlarmDefs.h	(.../AlarmDefs.h)	(revision 9ebc7a5eb4d5ca6fa80dbdff43692a2b95278c9f)
@@ -7,8 +7,8 @@
 *
 * @file    AlarmDefs.h
 *
-* @author  (last)      Arpita Srivastava
-* @date    (last)      14-Apr-2026
+* @author  (last)      Nico Ramirez
+* @date    (last)      17-Apr-2026
 *
 * @author  (original)  Sean Nash
 * @date    (original)  01-Aug-2024
@@ -279,6 +279,7 @@
     ALARM_USER_ACTION_RINSEBACK                                     =   1,  ///< User selected rinseback from alarm recovery options
     ALARM_USER_ACTION_END_TREATMENT                                 =   2,  ///< User selected end treatment from alarm recovery options
     ALARM_USER_ACTION_ACK                                           =   3,  ///< User selected acknowledge (ok) from alarm recovery options
+    ALARM_USER_ACTION_TEMPOARY_BREAK                                =   4,  ///< User selected temporary break
     NUMBER_OF_ALARM_USER_ACTIONS                                            ///< Number of alarm user actions
 };
 typedef enum Alarm_User_Actions ALARM_USER_ACTION_T;                        ///< Type for alarm user actions enumeration
@@ -292,7 +293,7 @@
     ALARM_STATE_FLAG_BIT_POS_NO_RESUME                              =   3,  ///< The "resume" user recovery option is disabled
     ALARM_STATE_FLAG_BIT_POS_NO_RINSEBACK                           =   4,  ///< The "rinseback" user recovery option is disabled
     ALARM_STATE_FLAG_BIT_POS_NO_END_TREATMENT                       =   5,  ///< The "end treatment" user recovery option is disabled
-    ALARM_STATE_FLAG_BIT_POS____AVAILABLE                           =   6,  ///< Not used - available for use
+    ALARM_STATE_FLAG_BIT_POS_NO_TEMPORARY_BREAK                     =   6,  ///<  The "treatment break" user recovery option is disabled
     ALARM_STATE_FLAG_BIT_POS_OK_BUTTON_ONLY                         =   7,  ///< The "ok" user recovery option is enabled
     ALARM_STATE_FLAG_BIT_POS_ALARMS_TO_ESCALATE                     =   8,  ///< One or more active alarms will escalate in time
     ALARM_STATE_FLAG_BIT_POS_ALARMS_SILENCED                        =   9,  ///< Alarms have been temporarily silenced by user
Index: MsgDefs.h
===================================================================
diff -u -rfc1093b5c522659c74e7873b4fd6dd1df3b8e1b5 -r9ebc7a5eb4d5ca6fa80dbdff43692a2b95278c9f
--- MsgDefs.h	(.../MsgDefs.h)	(revision fc1093b5c522659c74e7873b4fd6dd1df3b8e1b5)
+++ MsgDefs.h	(.../MsgDefs.h)	(revision 9ebc7a5eb4d5ca6fa80dbdff43692a2b95278c9f)
@@ -8,8 +8,8 @@
 *
 * @file    MsgDefs.h
 *
-* @author  (last)      Michael Garthwaite
-* @date    (last)      15-Apr-2026
+* @author  (last)      Sameer Kalliadan Poyil
+* @date    (last)      16-Apr-2026
 *
 * @author  (original)  Sean Nash
 * @date    (original)  01-Aug-2024
@@ -300,7 +300,7 @@
     MSG_ID_DD_TEMPERATURE_SENSOR_MEASURED_TEMPERATURE_OVERRIDE_REQUEST = 0xA019,        ///< DD temperature sensor measured temperature override request
     MSG_ID_DD_TEMPERATURE_SENSOR_READ_COUNTER_OVERRIDE_REQUEST = 0xA01A,                ///< DD temperature sensor read counter override request
     MSG_ID_DD_TEMPERATURE_SENSOR_FILTERED_TEMP_OVERRIDE_REQUEST = 0xA01B,               ///< DD temperature sensor filtered temperature override request.
-    MSG_ID_DD_AVAILABLE_3 = 0xA01C,                                                     ///< DD Msg ID not used - available for use.
+    MSG_ID_DD_SET_OPERATION_SUB_MODE_OVERRIDE_REQUEST = 0xA01C,                         ///< DD set new operation sub mode override request
     MSG_ID_DD_DIALYSATE_PUMPS_PUBLISH_INTERVAL_OVERRIDE_REQUEST = 0xA01D,               ///< DD dialysate pumps data publish interval override request
     MSG_ID_DD_DIALYSATE_PUMPS_TARGET_SPEED_OVERRIDE_REQUEST = 0xA01E,                   ///< DD dialysate pumps target speed override request
     MSG_ID_DD_DIALYSATE_PUMPS_MEASURED_SPEED_OVERRIDE_REQUEST = 0xA01F,                 ///< DD dialysate pumps measured speed override request