Hello sanford87
It is a procedural setup so you can not paint specific layers out of the box. This would contradict what this is about and be something to game specific rather than a general solution. However if you know your way around in the material system you can alter the master material to give you additional to the procedural part also layers that you can paint. See Landscape Material Layer Blending in Unreal Engine | Unreal Engine 5.3 Documentation for more info. As a suggestion for example if you like to add roads or so it is probably anyway better to use the spline mesh blueprints or the spline on terrain features with meshes rather than textures. See: Landscape Splines in Unreal Engine | Unreal Engine 5.3 Documentation