question
i draw a polygon curve. when i select and press F8 ,the size of the polygon gets smaller. why?

question
additional changes of copied objects
the firstly created objects i can take changes in the attribute editor. by a copied object the parameter are blocked.
concretly i want to refine the surface of a copied nurbs object.

question, coordinate direction local- world
a selected object, which place is not orthogonal to the origin, the coordinate pivot itself
how can i switch between local and world axis to transform objects?