The Position column shows the current order of products from PrestaShop. To change it just grab the arrows and drag the product to the newly selected destination. After making all the changes, click Save & Refresh. Note!

From the PrestaShop dashboard, go to the Catalog area and click, “Categories.” Click the tool to “Add new category” on the right of the screen. Fill out the information and click the “Save” button on the bottom right.

You can select your product type from the drop-down list at the top of the page, to the right of your product name. If it's a product with variations, first select "Standard product", then "Product with variations" in the Essentials tab.