Share Email Facebook Twitter LinkedIn To Reverse Lines, Polylines, Splines, or Helixes 2013-04-10 Product Documentation Intermediate View Original Click Home tab Modify panel Reverse. At the Command prompt, enter REVERSE. Select a line, polyline, spline, or helix to reverse. Press Enter to end the command. Related References Commands for Editing Specific Objects Related Concepts About Modifying Polylines About Modifying Splines