To turn on or off the Diagram Grid, click the Grid Slider.
If the Grid is enabled, you can change the color of the grid lines by clicking the Grid Line Color item.
Select the color to change the grid line color.
To change the width of the grid lines, enter in the amount into the Cell Width or click the Up or Down arrows to adjust the current spread.
To change the height of the grid lines, enter in the amount into the Cell Height or click the Up or Down arrows to adjust the current spread.
For easier shape placement, you can select the Snap To Grid in order for your shapes to snap into place along the Diagram grid.
Turning on the Snap To Items allows you to control shape placement based on other shapes already within the Diagram.
A dotted red line shows when one shape is aligned to another when Snap To Items is turned on.