You can add your account information for Ticketmaster, AXS, 100x Hospitality, ETix, Afton, Eventbrite, or any other Primary Ticketing company in your "Account Settings" under "Personal Info".
For sales with Digital Transfer, if your address book has your primary accounts linked the seller can transfer to you as soon as the request has been accepted. This makes the process easier for both them and you and really comes in handy for those last-minute ticket transfers right before showtime.