Set here the translation vector applied to each new direction.
By default, each copied direction has the same coordinates as the
original direction. This is expected when copying a direction or a list
of directions to a different layer. However, when each new direction is
in the same layer as the original direction (for a list of directions,
the
Local option in the
Layer menu), a small
shift helps to separate the new directions from the original ones.
All other properties are the same for copied and original
directions (only the identification numbers are different).