Grid
Click on the grid tool in the toolbar to toggle the grid's visibility.
You can add, edit and delete grid lines. When dragging objects across the canvas, the edges of an object will stick to grid lines.
To add a grid line, click anywhere on the ruler on the left or top side of the canvas area.
To edit or delete a grid line, double-click on the end of the grid line, that is on the ruler area.
You can set a specific position for the grid line. The value is in pixels counted from the top left corner of the canvas.