Delete keypoints from NP1 to NP2 (defaults to NP1) in steps of NINC (defaults to 1). If NP1 = ALL, NP2 and NINC are ignored and all selected keypoints (KSEL) are deleted. If NP1 = P, graphical picking is enabled and all remaining command fields are ignored (valid only in the GUI). A component name may also be substituted for NP1 (NP2 and NINC are ignored).