Display subcategory links as thumbnails This option allows you to see you subcategory links on the main category page. This is a nice option to have links displayed not only on the left hand side, but also on the main part of the page where it is more visible. These links will appear after any custom html (optional) entered for the category. You also have the option to enhance these links by create images for these subcategory links. Navigate to:
Display Breadcrumbs Category List This shows the customer the category tree of a particular item allowing for easy navigation. If you click on an item, above the item title you would see "Parent Category>Subcategory".
Display Parent Category Link when in item view Displays a link to the Parent Category on the actual item page.