You are currently not able to split the sale of your tickets on an existing listing. If you list the tickets in one listing, they are only able to be purchased by one buyer.

However, you are able to cancel your listing prior to selling and re-list your tickets as separate tickets or in any multiple you'd like. You must ensure that the listing is cancelled, before listing the same tickets to prevent multiple listings of the same tickets being bought - creating post-sale issues and administration fees.