The mapping page on eBay Sync allows you to map products and categories from PrestaShop to eBay's categories. This makes it simple to align the corresponding categories between each platform. This page also provides the ability to sort by unmapped categories or mapped categories which allows easy adjustment to products and categories that haven't been mapped yet or categories that need to be adjusted.
Selecting the attribute mapping tab will allow you to view and adjust attributes. This page also allows you to create custom attributes that don't exactly align with eBay's attributes. Similarly to the category mapping tab, this page also allows you to sort each attribute alphabetically as well as the ability to search for attributes.