What content would you like to see on the learning portal?

First thing I’m looking for is how to set up a procedural material for a terrain I created from a heightmap. So far not to be found. Please don’t send me to the marketplace for pre-made assets that will become obsolete and unsupported as Unreal Engine progresses. You have nothing more that a YouTube video of a live demo? How do I use Megascans and Mixer, what is the procedure? What are templates and best practices? This is why I left Unity3D.