The 
Debugging pane of the Max Preferences window
			shows some settings broadly associated with debugging
			and tracing tasks in Max, such as interacting with the Max
			scheduler,
			
signal probing
			and
			
matrix probing
			features, and the use of
			
Watchpoint.
		
			As a default, you can start and stop the Max scheduler by holding down the
			Command Key (Macintosh) or Control Key (Windows) and typing a period. This
			feature may be disabled. It may be useful to disable this feature in Standalone
			applications, in some cases (so that users don't accidentally stop the
			scheduler).
		
			By default, signal and matrix probing are enabled when you launch Max.
			Besides the personal matter of whether you'd like these features available
			on launching Max, you may also wish to disable these features in Standalone applications.