Hello! Here is something that I think would be very helpful when navigating the tree.

When ever you see a person in the tree who does not have a spouse, it makes you wonder if you have not found the spouse or if the person never had a relationship at all, so you end up spending time checking this (again).

This could easily be fixed by using the No Relationship Fact as a trigger for the tree view not to print out the empty spouse box, but rather only the person who has this fact indicated.

I think this would save a lot of effort and add clarity to the tree view, so you can see right away that there are no descendants to that person.

/ John