Does the API offer support for mesh operations?

I’ve looked over the API library for anything to do with lower level mesh operations (checking face normals, setting face normals) Looking over the StaticMeshLibrary https://docs.unrealengine.com/en-US/…shLibrary.html and there’s verticies count but nothing to set any properties of a mesh. Is there anything in the library to support this or would I have to generate my own mesh?