Thanks to all that replied. I think I've found a neater solution. A fact can be added to the the Facts List, under, "Lists", "Facts Type" in the toolbar. I added "Twins" as "Add Fact" item on an individual. You can also select which reports you want this new fact to appear in, etc. Pretty handy! It also worked for my question of some time back about name changes too. I just added a Fact called "Name Change". This feature is also good for getting rid of those "Facts" you never use, that clutter up the list, you can delete as well as add facts.