In this video I am showing you how to get assets from UE5.1 Marketplace and migrating them into your UEFN project. Step by step guide hopefully easy to follow. Any issues you can leave a comment here.
Hope you find it useful.
https://dev.epicgames.com/community/learning/tutorials/mM0L/unreal-engine-fortnite-migrate-assets-from-ue5-to-uefn