BOTH allows you to divide two intersecting entities
(excluding circles). Each entity is divided into two
separate entities, based on the intersection with other
entities. The current attribute values are assigned to one
or two of the entities.

Select the portion of the break entity that will keep 
the same attributes after breakage.

Select an intersecting entity (near the intersection of 
the first entity chosen) in the same manner as the first 
entity chosen.

The selected entities are broken into two separate 
entities at their point of intersection.

The first portions of the entities selected (the portions
containing the selection points) are redrawn with the
original display status (attributes) up to their common
intersection. The second portion of each entity is created
as a separate entity with the current attribute settings
assigned.
