Yes,  Pay Pal account can be changed on the item level in bulk with this header: ebaypaypalemailaddress to submit a PayPal address for one specific listing.

NOTE:  If you are using eBay business policies you will need need to create a payment policy for each specific PayPal address on eBay and use that payment profile id for each listing after Refreshing Profiles in the eBay Channel Settings on Suredone.