Setting up a grid with the Grid inspector
Use this inspector to set up a grid on the canvas, so you can keep objects lined up nicely.
The Major Grid Spacing field determines how large each square of the main grid should be. Click the color well next to it to choose a color for the major grid.
The Minor Grid Steps field determines how many minor grid squares should fit across one major grid square. For example, if your major grid squares are 100 pixels across, and you have 10 minor grid steps, your minor grid squares are 10 pixels across. Click the color well next to it to choose a color for the minor grid.
While the Snap to grid checkbox is selected, all objects fit themselves to the grid as you create or move them. (If you want to snap objects already on the canvas, use the Align To Grid button below.)
Select Grid in front to make the grid visible in front of objects on the canvas.
Select Print grid to include the grid when printing.
Select Show grid to make the minor grid visible, and Show major to make the major grid visible as well.
The controls below the separator affect the currently selected objects. The Center on grid and Edges on grid buttons determine whether the center point of the object or the object's edges should align to the grid. Click the Align To Grid button to make all of the selected objects line up to the grid right away.