[2024] Bigger world size (11.1.6)

Hello,

I noticed there has been a change when creating a new world. I remember a few months ago when you want to create a new world you can edit the size of the map via the world generator config file. I see I can still open the file and try editing the size there but whenever I open the game and I try to create the new world there is a slider (between 0.5 sq.m and 2.56 sq.m) and it does not allow me to make it larger than that. I remember before through the config file I could simply create 9 sq.m worlds for example. Is this still possible and if yes how?

Thank you in advance! And Merry Christmas!