What makes autogrid unique are the gutters. Easily drag and adjust the layout of your autogrid by using autogrid gutters. You can customize the size of the gutters from 0px and above using the contextual panel on the right hand side:
How to customize autogrids
Use the diagram in the right side panel to set the pattern for your grid:
Note: The pattern you set above the full width plus sign will apply to the entire grid - including any additional objects that you add later.