This tutorial covers how to use the Modeling tools in Unreal Engine to create more complex shapes. The steps tools are exactly the same as in UEFN. HOWEVER there is a slight difference in the UI, see image below.
Specifically we cover using the Boolean Difference tool and the Lattice tool. First we cut a cone in half, then hollow it out. Then we create a teardrop shape from a sphere.
https://dev.epicgames.com/community/learning/tutorials/56dd/fortnite-modeling-tools-booleans-and-lattice