Create curves and define advanced parameters. This tool allows us to create complex curves very quickly.

Drawing > Smart Curve |
Command: SmartCurve |

Steps:

1. Select the points with which we want to define the curve.

2. We can change such parameters as "closed" or "symmetry" at any moment. We can define four "symmetry" options: None, Vertical, Horizontal or Quadruple.

3. There is a function that allows us to add a vertex to the curve. By clicking on any point and pressing on the Shift key we are able to add a vertex. The Undo option allows us to delete the last selected point.

4. By clicking on any point and pressing on the Ctrl key we are able to define height on the point.