Comment 9 for bug 171479

Another hint: If you want to extend one end of a curved path, just put a new path to this end (F6) while pressing the Ctrl key. This snaps the new line to a 0 degree prolongation (same direction as handle) if you move the mouse in about the direction of the handle. Ctrl is for snapping to 15 degree steps (0°, ±15°, ±30°, ±45°, ±60°, ±75°, ±90°, …).

Close this bug and add some tutorials. Or how could we make this more intuitive?