Changes

* All threads can be frozen (including the main thread) so that the programmer can check the status of one specific thread

* Frozen thread can also be thawed at any time to make it back into service

[[File: freeze.png]]

* It is quite useful when there are too many threads

* By clicking `Show Flagged Threads Only`, only threads that are marked will be displayed

[[File: flag.png]]

[[File: sort.png]]

== Case B: Using the Parallel Stacks Window ==