Unable to add incestous relationships, Game of Thrones family trees issues

Question

I wanted to make a complete family tree of House Targaryen from A Song of Ice and Fire and Game of Thrones, but as the Targaryen tree contains a lot of incestous relationships, and attempting to choose a sibling as 'an existing parter from the tree' results in a very annoying duplicate of the entire tree below it, which would become unweildy very quickly. Is there any way around this?

Answer 1

At this time if the people have some sort of double relationship they will show up as a dupliate on the tree. Right now there is no way around this though its been brought up in the past.