Control Points

Extrude Curve and Move

Reference

Mode:

Edit Mode

Menu:

Control Points ‣ Extrude Curve and Move

Shortcut:

E

Extrudes points by duplicating the selected points, which then can be moved, and connecting those points back to the original curve creating a continuous curve.

Tilt

Reference

Mode:

Edit Mode

Tool:

Toolbar ‣ Tilt

Shortcut:

Ctrl-T

This setting controls how the normals twist around each control point. The tilt will be interpolated from point to point (you can check it with the normals).

Clear Tilt

Reference

Mode:

Edit Mode

Shortcut:

Alt-T

You can also reset the tilt to its default value (i.e. perpendicular to the original curve plane).

Set Handle Type

Reference

Mode:

Edit Mode

Menu:

Control Points ‣ Set Handle Type

Shortcut:

V

Handle types are a property of Bézier curves and can be used to alter features of the curve. For example, switching to Vector handles can be used to create curves with sharp corners. Read the Bézier curves page for more details.