OBSPLINE
ManualOBSPLINE creates an open B-spline from a selected polyline or a temporary polygon.
Syntax: create/select vertices or select a polyline, then run OBSPLINE.
Use SELECTV to define the curve leader with vertices, or select an existing polyline. The polygonal leader is limited to 20 vertices.
Related commands: CSPLINE1, CSPLINE2, CBSPLINE, BEZIER, SELECTV.
Undo: Yes.