Polyline Pro is an easy to use yet powerful and intuitive tool which provides a clear and efficient user interface to create splines precisely with measurements and angles in a manner similar to AutoCAD. The main purpose of Polyline Pro is to bring the spline drawing in 3dsMax at a higher level.
With Polyline Pro you can:
draw splines in Orthographic, Polar, Arc and Freehand mode create points using Absolute or Relative coordinates use direct distance entry - point in desired direction and type the length and/or the angle to create a segment use guides and tooltips use short commands for quick access to almost all of the features use Object Snaps to mark certain points/lines and continue to draw in their projection or intersection draw spline using World Coordinate System or User Coordiante System
For more information go here.