Location, PayPal, eBay StoreName
Location is your area. Nothing more, just it.
PayPal Email – PayPal is fully integrated with eBay. If you want to get payments via this processor, you should place your email address here, this same you have registered at PayPal service.
The last option is for people, who have their own store with their own categories on eBay. To fully integrate our plugin with eBay and your eBay store, place here name.