3.4.2 - Edit View
Step Description:
- In the drawing space, select the superelevation view to enable the grips.
- Right-click to view a menu of the editing options.

AutoCAD Civil 3D 2012 User's Guide reference:
User's Guide - Superelevation - Editing Superelevation Data
For more information watch the video below:
Superelevation (WMV)