You can find any tool by the Menu Structure HERE: https://turbocaddoc.atlassian.net/wiki/display/TC21UG/Menu+Structure
You can find the menu location of any tool by name HERE: https://turbocaddoc.atlassian.net/wiki/display/TC21UG/Tools+Mapped+to+Menus
LightWork
Available in TurboCAD Pro and Platinum only
 The options on this page are relevant to Render Styles. See Creating a Rendered View.
Transparency Shadow: Specifies whether a render created with a render style will support shadows cast by transparent objects.
Multi Threading Options
Enable: Enables multithreading for rendering via the use of multiple CPU cores.
Use Automatic Number of Threads: If On the number of threads will be automatically determined.
Threads: specifies the number of threads to use if "Use Automatic Number of Threads" is turned off.