"DeletePreviousWord" is a front end token that deletes the word to the left of the insertion point.

"ExplainColoringDialog" is a front end token that brings up the Why the Coloring? dialog with an explanation of the syntax coloring in the selection.

"GraphicsRender" is a front end token that rerenders the selected graphics.

"MoveLineBeginning" is a front end token that moves the insertion point to the beginning of the current line.

"MoveLineEnd" is a front end token that moves the insertion point to the end of the current line.

Dynamic Updating Enabled toggles automatic evaluation associated with dynamic objects.

Exit causes Mathematica to quit.

Rendering opens a submenu to control rendering operations.

Welcome Screen opens the Welcome Screen, which appears by default each time you start Mathematica.

Word Wrapping opens a submenu of word wrapping styles