Procedural Grid Mesh

Hello! I discovered an interesting component - the procedural mesh. Over the past two days I got to know him better. And today I created an actor that contains a procedural mesh. And based on the number of quads and sizes, the function fills all the necessary arrays (vertex buffer, index buffer, normal tangents, texture coordinates, vertex color). On the official website, I found a method that automatically fills these arrays to create a grid. But in my version of the engine it does not exist (probably the