You can show a grid on the canvas. The grid can help you align and place objects in a drawing.
Click the Canvas button on the toolbar.
You will see canvas options in the editing panel.
Click the Grid check box.
You will see a grid on the canvas.
To change the color of the grid, click the Color box and choose a new color.
To change the spacing of the grid, type a number for the grid spacing in the Spacing field.
You will see the grid spacing change on the canvas.
If you want the grid to be visible when you print or export a drawing, click the Show When Exporting check box.
The Snap To Grid setting is on by default. This option makes it easier to align objects in your drawing with the grid lines. You can disable this feature by un-checking the Snap To Grid check box.