PrivateEvaluationOptions -> {opt_1 -> val_1, opt_2 -> val_2} is an option for selections that specifies settings for evaluation-related suboptions.
Mathematica can represent not only data and programs, but also the execution history of programs, as symbolic expressions—which can be displayed, manipulated, and analyzed ...
Default Kernel specifies the default kernel for all calculations.
Notebook's Kernel specifies the kernel for a notebook.
Start Kernel starts the specified kernel.
Debugger Controls opens a submenu of debugger controls.
Quit Kernel quits the specified kernel.
Attributes for controlling numerical evaluation. Usually N goes inside functions and gets applied to each of their arguments. This tells Mathematica not to apply N to the ...
Dynamic Updating Enabled toggles automatic evaluation associated with dynamic objects.
Continue resumes debugging from one breakpoint to the next breakpoint.