- Select the entity you want to break up.
- Click the first point at which the entity is to be divided.
- If the point does not lie on the entity, the separating point is assumed
to be the closest point on the entity.
- Click the second point at which the entity is to be divided.
- The segment between the two points is removed if the "Remove Segment"
option in the options toolbar is active. Otherwise, the entity is only
separated at the given points.