Question How to bake Terrain "ColorBlendTexture" like done in "Unity Terrain - HDRP Demo Scene"

Hi guys, I´m trying to find how to bake the composite terrain texture so it can be used in vegetation shaders, just like it was done in the "Terrain HDRP Demo Scene":

https://assetstore.unity.com/packages/3d/environments/unity-terrain-hdrp-demo-scene-213198



Any help apreciated.