reflect nodes horizontally and reflect nodes vertically

Hi, guys! I would like to ask you how to remove extra lines produced by clicking on buttons "reflect nodes horizontally" after using freehand tool in coreldraw. I clicked on the buttons  "reflect nodes horizontally" and  "reflect nodes vertically" mistakenly, while using the freehand tool. Please help me how to remove the many extra lines around the many small drawings which I have done the work.