Pick Edge
Picks or unpicks two adjacent vertices of a hull segment on NURBS objects or a single edge of subdivision objects. If you cannot select a subdivision edge or CV, make sure that CV/Hull is turned on in the Controls Display section of the Control Panel.
Tip: If an edge is already picked, hold the key and press the arrow keys to pick surrounding CV, edit points, hulls or blend curve control points one at a time.
Access this tool from the Pick palette: