If a grid is hidden, you can show it in the model window. When you place or move model items, they are inserted or moved according to the grid width. This facilitates the orderly placement of model items.
Procedure
A dot grid is displayed in the model window and the check box is enabled (). Model items are placed and moved according to the grid width.
To hide the grid, click Grid and guides >
Show grid. The dot grid is hidden and model items are placed or moved pixel by pixel.