How to create a world partition in ue 5.0.2 on a huge landscape that was migrated from ue 4.27?

So, I have a large unoptimized landscape that I moved from Unreal engine 4.27 to Unreal Engine 5.0.2. I watched a lot of tutorials on World partition, but not one of them did not work, because it said: “In the Project settings section, find the World partition tab and click on the Enable world partition button.” But here’s the problem, I don’t have the Enable world partition button. What to do.