This dialog box lets you define the origin and pitch (spacing) for Grids. The grid allows you to align and place objects precisely.
Pitch
The horizontal and vertical spacing of the grid points (in pixels). The smallest grid size you can specify is 3 x 3 pixels.
Origin
Specifies the grid origin (base point).
Display Grid
Displays the grid on screen.
Snap to Grid (F8)
Activates the grid. When the grid is active, any object or group of objects that you create, move, or re-size snaps to the nearest grid intersection.