Your design incorporates multiple materials up the height of a wall, so how do you show all of the various materials on that wall in your Envisioneer model?
Left click to select the wall and then right click and choose Properties. In the Properties page of that wall, go to the Trim tab. One of the trim options that you can associate to any side of a wall is a “Custom” trim option that allows you to customize the trim to any height and material. Perfect for adding a face of a different material up a wall. Using the other trim options you can also put a chair rail or exterior banding above it or baseboard below it to finish off the complete look. Hope that makes your Envisioneer work, one step easier!