Just a quick overview of threading wizards.
There are three threading wizards for Turn as shown by the attached pics.
Actualy two since the Complex Threading Wizard is not really supported and Brian would like to see it
declared a myth.

The complex wizard is just that, namely very complex in that it tried to provide three pass types along with
three cut types and two infeed types and additionly many different types of threads.I believe there are some bugs in it,
but frankly if it all worked i would probably use it. Not for a novice and unless fixed ,tested, and
documented ......... don't think it should be considered for the new lathe screen.
The G76 thread calculator is included a Mach installation.
The Simple threading wizard and Quick threads are somewhat similar with Quick threads providing more options.
The user has choice on which wizard to use via selection in the Wizard Tab.
RICH