An outer thread is drawn in the same way as an ellipse. The direction in which you drag the ellipse when generating it determines the orientation angle and thus the direction of the thread turns.

Located on the ellipse is a thread point. By dragging the thread point over the screen with the arrow cursor you can define the length of the thread. This length is always a whole multiple of the thread spacing. The spacing between the turns is assigned automatically (see the thread specifications in the Threads preferences dialog page in Preferences).

The depth and spacing of the thread turns can be changed subsequently.