For rendering a map of east Germany, I've automated most of the steps that are described in the Landscape Guide into a Python program:
It is able to automatically generate the heightmap input from the USGS DEM data, texture tiles from a GeoTIFF DOP, and forests, water and thermal map from OpenStreetMap data. All three parts can be used independently.
As it does not cover 100% of the workflow, and needs a few clicks in LandscapeEditor and WaterAlpha, an understanding of the general workflow as described in the Landscape Guide is still required. But I think it can be a huge time saver if you want to generate a new Landscape.