The Curvature tool lets you draw and edit paths and shapes using smooth and anchor points.
Click the Curvature tool or press Shift + ~.
Click anywhere on the artboard to set the first point. Click again to create a second point. A line segment is created. Now, move the pointer to preview the resulting path.
Click further to add points and create a shape. Close the path to complete the shape.
To draw straight lines by adding corner points, press and hold Option (macOS) or Alt (Windows) and click.
Edit smooth and corner points:
Click anywhere on the path to continue adding points to the existing path, or click the point and press Delete to remove it.
Drag the point to move it.
Double-click any point to toggle between a corner point and a smooth point.