Gumball Extrude does not work for mesh vertices, but there is workaround

Using gumball to extrude mesh vertices as points does not work directly. When only vertices are selected, using sub-object selection of points/vertices of a mesh, the gumball extrude icon is not present on the gumball axes. However, the a set of vertices can be copied to a set of points, whereupon the gumball extrusion works as in a helpful video here