Revert restores the current notebook to its last saved version.
Screen Environment determines which style environment to use for onscreen display.
StandardForm Display displays a selection in Mathematica StandardForm.
Start Kernel starts the specified kernel.
Welcome Screen opens the Welcome Screen, which appears by default each time you start Mathematica.
Wolfram Website opens the main Wolfram Research website in a web brower.
Word Wrapping opens a submenu of word wrapping styles
AutoIndent is an option for Style and Cell that specifies what automatic indentation should be done at the beginning of a new line after an explicit return character has been ...
AutoOpenPalettes is a global option that specifies the palettes that are automatically opened when Mathematica is started.
Booleans represents the domain of Booleans, as in x \[Element] Booleans.