Collection grid section allows to display list of images and collection names in your store in grid form.

Enter heading and adjust heading size.
Content width: Adjust the width of the grid content.
Desktop row height: Adjust the height of the rows on the desktop.
Mobile row height: Adjust the height of the rows on the mobile.
Maximum number of columns on desktop: Maximum number of columns allowed.
Blocks:

The Columns and Rows customization allows you to define how many columns and rows the block will occupy and should be based on the maximum number of columns allowed by.