Imagine the case. Two brothers beloved by the sisters and neighbors took them. Now when creating a family tree enter rodičov bratov and then the two brothers. Then we enter the first brother's wife and family of the wife. When they have finished, so we're going to enter the second brother's wife. But now we have to re-enter the wife and the whole family, while her once when we entered her sister. To avoid the problem, so we need only the second nurse assigned to parents who have completed the first sister. We will do this so that we move in the lineage sister to the other without their parents so that the blue box. Then click on the and assign it the correct parents. This feature also works to change the parents, but here we must note that when changing to other parents entered; grandparents blot from the database. That is why use this feature with caution.