Some clients are a bit confused about this issue. Vectorworks uses two concepts that look…
Vectorworks Tips 446 – Slab Textures
Slabs can be textured by object or by component. What does this mean? When you texture the slab by object, the textures are applied to the top, bottom, and sides of the entire slab, regardless of the component textures. If you texture the slab by component, the texture of each component is applied to the entire component (top, bottom, and sides).