[Closed] Scripted SplineShape helper?

Would like to have a helper plugin that displaies a SplineShape with 4 corners. No idea if something like this is posible at all. Since it worcks for meshes, I thought it could also worck for SplineShapes, but I am really new to maxscript and can be wrong. When creating such SplineShape helper object, the user should first point to position of first corner, then second and so on untill the fourth and after that the SplineShape with the 4 corners should be created, also not shure if something like that can be implemented in maxscript.