To create a Grid layout first need to select Layout Type = Easy Digital Downloads then select a Grid Layout Style.
Step 1: Select Layout Type => Easy Downloads Layout
Step 2: Layout Style => Select any Edd Layout.
Step 3: Now set the display per row of the column for desktop, tab & mobile view.
Now set the other fields and tab as you need to follow Shortcode Generator steps (1-5) that showed in above.