This is documentation for Mathematica 5, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)

Documentation / Mathematica / Front End / Menu Commands / Format Menu /

Show Ruler

FilledSmallSquare Show Ruler toggles the display of the ruler along the top of the notebook.

FilledSmallSquare Use the ruler to set the text margins of selected cells and set the indentation of cell names and keywords.

FilledSmallSquare This command sets the option WindowToolbars Rule{"RulerBar"} on the selected notebook.

FilledSmallSquare See: WindowToolBars.