http://www.zwsoft.com/forum/viewthread.php?tid=1868 hi mdiaconu, Did you mean you try as following steps: 1. <strong>Splinedit>Fit data>Add</strong> to add more control point to the spline. 2. run scaling/rotate/move/copy etc to this spline, result: the new add control point lost I try as step1 and 2, but can't get the result. Would you tell me your detailed steps to lead to this problem? Jenny2011-11-01 21:31:35 mdiaconu 2011-11-01 21:31:05 http://www.zwsoft.com/forum/viewthread.php?tid=1868&pid=13927 Hi all ! Another old bug. SetControlPoint method works but if I handle the new spline (scaling, rotating, moving, copy, save) it goes back to the old one. Regards, mdiaconu mdiaconu 2011-10-31 04:21:03