diff --git a/app/models/event_device_models.py b/app/models/event_device_models.py
index ac17da0..65f665b 100644
--- a/app/models/event_device_models.py
+++ b/app/models/event_device_models.py
@@ -48,6 +48,10 @@ class Event_Device_Base(BaseModel):
     app_server_base_url: Optional[str]
     file_server_base_url: Optional[str]
 
+    api_server_base_url_bak: Optional[str] # Backup URL
+    app_server_base_url_bak: Optional[str] # Backup URL
+    file_server_base_url_bak: Optional[str] # Backup URL
+
     trigger_reset: Optional[bool]
     trigger_open_file_id: Optional[str]
     trigger_open_hash_file: Optional[str] # The file hash
@@ -77,6 +81,7 @@ class Event_Device_Base(BaseModel):
     # sort: Optional[int]
     # group: Optional[str]
 
+    event_notes: Optional[str]
     notes: Optional[str]
 
     created_on: Optional[datetime.datetime] = None