I just started using this, and I would expect that when I create a new "individual" that I would be able to set the "Ascendants" and "Descendants" on the same content creation page, and that they would be ajax fields that pull from all of the other "individuals".

Technically, I'm not using it for family, but for school lineage, so I'll want to change it around eventually to input "teacher(s)" and "student(s)" but I don't foresee that being an issue.
For now I just want to know how to use it. I don't see any documentation on it either.