A Square Enix account is a free account provided for authentification in a number of Square Enix's online services. Besides its use in upcoming online services, one can also associate multiple IDs from current services to a single Square Enix account and enjoy features only available to Square Enix account holders.
The game servers are cross-platform. The only thing to transfer is stuff like HUD Layout, Hotbars, Gear Sets, etc. This is normally saved locally, but can be uploaded in any platform to the server on the character select screen. Stuff like story progress, job levels, etc. are all server side already. There is no "save" to transfer for these.4 days ago · The latest connection to Dawntrail is in the name for the neon metropolis filled with glowing purple neon, Blade Runner-esque advertisements and buildings shaped like an Alienware PC case. It’s called Solution Nine - a callback to one of the Trance abilities of Final Fantasy 9 hero Zidane, used using the Limit Break-like status.
On your new computer, install the game and go to the same pathway as above to reach the same folder. Copy and paste your saved files into this folder and choose to replace files to ensure your character data, such as hot bars and HUD layout, will be ready and waiting for you when you boot up the game. Next.As such, as long as you log into your friend's PS4 with your own PSN account, you should be able to log into the game and play just fine. According to @Troyen in the comments, as of version 3.26, you need to download approximately 3GB of additional data the first time you log into a Heavensward-enabled account on an existing install of the game yxFy.