Guidelines and the Layout Grid
In addition to layout guides and smart guides, you can use the layout grid when arranging objects in the 2D layout.
To show or hide the grid, use the 2D View section in the program settings.
Grid spacing is linked to the current measurement units and scale. The program changes grid spacing automatically when you change the scale of the 2D view.
Only layout guidelines can snap to the grid. Objects do not snap to it.
To align objects to grid lines: