Opens a control window allowing you to show or hide various control features on all or picked objects.
What objects the checkboxes will affect when you click Go. Set this to ACTIVE to only affect the picked objects.
This option only appears when Scope is set to NEW CRV. It lets you specify which controls should be displayed when building a new curve of type: CRV (regular curve), BLEND CRV, or KEYPOINT CRV.
Automatically turns all the checkboxes on or off.
Show keypoints on keypoint curves (lines, arcs, rectangles, and so on).
Show lines connecting adjacent CVs.
Show control points on curves.
Show interior s on surfaces. When this option is off, only the surface edges are visible.
Number of descriptive isoparameteric curves that will be drawn for each span of a surface. This option only appears when Scope is set to NEW SURF.