We made a mistake on our tree. We have a line connecting my grandfather to my great-grandfather. However, the line from the great-grandfather should actually connect to my grandmother. She's the descendant of this great-grandfather. My grandfather married into the family. How can I move the line to connect to the correct person? (That is, I need to make her the daughter of this great-grandfather, and disconnect the line connecting her husband to the great-grandfather.)
