Click the edit icon on the right side of the name of the child you wish to remove in the listing of parents with children. This will open a screen called "Parent - child relastionship", that allows you to "replace or remove" that individual from the parents. Another screen will open, click the box beside "I have reviewed the relationships, sources, and notes for these individuals", which will allow you to removed the parents from that person. Be sure to indicate why you are removing the child from the person. Hope that helps.