You can use the Drawing Aids palette to show or hide rulers and object boundaries, set the grid, and set other preferences.
• To set the grid’s interval, type new values in the X and Y Interval boxes. For example, if the grid is in 1-inch units and you specify an interval of 10, 10 grid points are displayed per inch.
• To add a guideline, starting from the upper-left corner of the Layout Editor, drag the pointer onto the page. To remove a guideline, select its triangle in the ruler and drag it off the page.
• To set the color of object boundary borders, click Styles, click the Color box, select More Colors, and either choose a predefined color from a palette or create a custom color by clicking Define Custom Color.
• To set the color of grids or guidelines, click the Color box, select More Colors, and either choose a predefined color from a palette or create a custom color by clicking Define Custom Color.