Edit NURBS > Selection

Grow CV Selection: Expands your CV selection in all directions around the surface.
Shrink CV Selection: Subtracts from your CV selection in all directions around the surface.
Select CV Selection Boundary: Keeps the outer CVs you have selected and deselect the inner CVs.
Select Surface Border: Selects CVs along the surface borders. The borders are defined by U and V values. By default, this operation selects CVs along all borders. In the options window for this operation, you can choose which border CVs you want to select: First U, Last U, First V, or Last V.