You can transfer multiple PlayOnline IDs to a single SQUARE ENIX account up to a maximum of 10 PlayOnline IDs. You can also log in to multiple PlayOnline IDs simultaneously. To transfer the PlayOnline IDs to a SQUARE ENIX account, log on to the SQUARE ENIX account management site (https://secure.square-enix.com/) and select “PlayOnline/Final Fantasy XI Service Accounts”. Click the ‘Transfer’ button and log on the PlayOnline ID you wish to transfer.