Graphics > Rendering > Align Selected ... (Mathematica Menu Item)

Align Selected Graphics makes selected graphics cells line up with the first graphic in the selection.

Insert > Automatic Numbering... (Mathematica Menu Item)

Automatic Numbering creates an automatic numbering object, or counter, in the current notebook.

[Right-click] > Get Coordinates (Mathematica Menu Item)

Get Coordinates displays the approximate coordinate values of the mouse position.

CellEpilog (Built-in Mathematica Symbol)

CellEpilog is an option for Cell which gives an expression to evaluate after each ordinary evaluation of the contents of the cell.

CellOpen (Built-in Mathematica Symbol)

CellOpen is an option for Cell that specifies whether the contents of a cell should be explicitly displayed.

CellProlog (Built-in Mathematica Symbol)

CellProlog is an option to Cell that gives an expression to evaluate before each ordinary evaluation of the contents of the cell.

CopyFile (Built-in Mathematica Symbol)

CopyFile["file_1", "file_2"] copies file_1 to file_2.

DefaultDuplicateCellStyle (Built-in Mathematica Symbol)

DefaultDuplicateCellStyle is a notebook option that specifies the default style to use for cells created by automatic duplication of other cells in the notebook.

EndDialogPacket (Built-in Mathematica Symbol)

EndDialogPacket[integer] is a MathLink packet indicating the end of the Dialog subsession referenced by integer.

LocalizeVariables (Built-in Mathematica Symbol)

LocalizeVariables is an option to Manipulate that determines whether the values of variables associated with controls should be localized.