How do I edit UEFN maps with friends?
You need to invite your friends to the project in your uefn portal creator(they need to register as portal creators), ofc you all need to be 18+ to do this.
Hey, go to your Creator Portal (https://create.fortnite.com/personal) and log in with your account. Then on the left part of the screen you will see selected team, click on that and the small window will popup. On that window click Create A New Team and add your friends. Be sure that you already are friends on Epic. Also be careful when giving roles to your friends, the best would be not to give them administrator roles. And make sure that you and your team friends check-in every change that you make in UEFN.