When selling an item, is it possible to offer free economy shipping, but also give the buyer an option to pay for expedited services (be it Next Day, 2 day, etcetera)? I don't see a method to accomplish that when creating/revising a listing.

Free shipping on economy; buyer pays for expedited options | Ask a Mentor

Free shipping on economy; buyer pays for expedited options | Ask a Mentor | eBay Community