Link Fortnite acc?

So how can I transfer my ps4 epic account to another ps4 acc

Need your email and password. Install Fortnite on the other ps4. After that comes ne question: Have you ever played Fortnite or are you new. Go on Hab ever played and log in with your data (is at least on the switch. Can't assure you whether it is on the ps4 on the pc, for example)