Use the Drawing Aids palette to specify the grid and ruler settings and drawing units. You can also show or hide object boundaries and specify boundary border styles.The horizontal and vertical rulers, the grid, and the long cross hairs help you position objects precisely across the width or length of a page. When visible, rulers appear along the top and left side of the active body or master page. Markers in the ruler display the pointer’s position when you move it. Changing the ruler origin (the (0, 0) mark on the top and left rulers) lets you measure from a specific point on the form design.You can also show or hide object boundaries on the form design. Showing boundaries is useful for displaying objects that do not have borders on the form. You can also specify border style for fields, subforms, content areas, groups, and other objects.