You can choose to display debug messages when triggers fire during application execution. Debug messages are hidden by default.
To display debug messages:
Or
To hide the debug messages, deselect the Debug Messages checkbox.
When an event causes a trigger to fire, the Builder displays a message box just before the trigger is fired. The message specifies the name of the trigger that is being executed and the name of the object (module, block, or item) to which it is attached.