Click on “Add Products” and add your products into the appropriate category.
Once all of your products are uploaded, you’d be able to see your products at the products menu.
Then, in order to sort your products, you will to select the organize tab and drag the category to the box.
Note that however you sort the products, it would not affect the category order which you have arranged earlier.
Go to Product Information.
If you have too many products, you can use the 'Search' feature to search for the certain products to edit.