A Power Surface is a surface created from wireframe items. Editing curves and points within a surface uses the same methods as editing wireframe curves.
You can edit a Power Surface in the following ways:
Select the surface and edit it using the options on the Surface Tools tab.
Note: The Surface Tools tab > Modify panel contains curve editing options that can be applied to surface curves. See the Editing a curve section in the Wireframe Modelling manual.
Select the surface and use the graphical editing features.
Right-click the surface and use the options on thecontext menu. The top of the context menu displays the type of surface, its name, and the level on which it lies.