In your advanced category settings, you can control how your items are displayed within that given category. The options available to you in this section are:
Product Price (Low to High - High to Low)
Product Age (Newest/Recently Added)
Product Name
Product Age
Product Stock
Average Review
Review Count
Free Shipping/On Sale Status
In some cases, these options may be too limited for your specific needs. For example, you may want to add a more organic flow to your category product listings and group similar items together rather than sorting by price, name or age. If necessary, you can also specifically control exactly in which order the items are displayed by using the Product Sorting feature.
Product Sorting
Go to Products > Categories.
Click on the Action button located at the far right of each category.
Click on the Product Sorting link.
Type the sorting number next to the corresponding products in the Sorting field. Lower numbers will display before higher numbers.
Click Save to set your sorting.