Opening the Z-value Transfer window

If you have a z-value as an attribute for a shape on an Unstructured, Line, Point, Whole Polygon, or Topological Line vector layer, you can transfer that value to the shape's vertices. Conversely, you can also convert the z-values from the shape's vertices into an attribute.

The values for the vertices are not directly associated to the attributes. If you change the z-values for the attributes, it will not automatically update the vertices, and vice versa. If you want to update either the vertices or the attributes, you must repeat the z-value transfer.

You can view the vertices of a shape with the Vertices tool available in the Vector Editing toolbar (see Viewing, adding, and removing vertices).