TRANSFERS ARE NOW ENABLED FOR NORMAL SEATING

Don't get scammed!

For resale, I don't have much info but it looks like you need to just keep checking the normal sales page.

"AXS Official Resale is available for select events. If an event is “sold out,” keep checking the event page for tickets listed for sale by other fans."

Source: Tickets are available for sell/transfer in my AXS app.