diff --git a/utils/commander.py b/utils/commander.py
index d4159bc..d05d035 100644
--- a/utils/commander.py
+++ b/utils/commander.py
@@ -37,6 +37,7 @@ INSTANCE
 10) edit_call_wait_time 11) reload_markets      12) fetch_full_log
 13) paused_traders      14) fetch_log           15) edit_cooldown_multiplier
 16) get_balance         17) cancel_global_last_call
+18) mod_default_order_size
 
 EARN
 31) toggle_pause        32) get_step_size       33) set_step_size
@@ -319,6 +320,20 @@ if __name__=="__main__":
                 print(json.loads(requests.post(url, headers=headers).content))
                 input("Press ENTER to continue ")                                   
         
+        elif command==18:
+            print("mod_default_order_size modifies the default order size that is used when creating a trader")
+            print(f"Current value is {None}")            
+            print("The input value can be an integer or a float")
+            new_default_order_size = input("New default order size: ")
+            if not validate_float_or_int(new_default_order_size):
+                print("The input is invalid")
+                break
+            if input("Proceed? (Y/n) ") in ["Y","y",""]:
+                url = f"{base_url}{port}/mod_default_order_size"
+                parameters = {"amount": new_default_order_size}
+                print(json.loads(requests.post(url, headers=headers, json=parameters).content))
+                input("Press ENTER to continue ")        
+        
         
         ######################
         ######## EARN ########