I complete disagree on this one. Completely.
Having a top/coping/capping to a wall is basic. To represent an object in the model - to point to it and reference for more detail-, and to control shadows/graphics. I am dumbfounded as an architect this is not there or easily discoverable in the wall settings. I have spent an hour trying to model something, to at least point to on the graphic but can't. The wall top varies in height and includes gradients. Extrude along path does not work. Building it up in slabs won't work as I can't rotate the objects in 3D with enough control.