Labeled Hierarchy in SmartArt

(Q) is there any way to increase the number of entries that you can add to one table using Labeled Hierarchy in SmartArt Graphics in Excel.

I am trying to create a family tree using Labeled Hierarchy in SmartArt Graphics in Excel. the problem I have is there seems to be a limit on the number of entries you add. I have a rather large family tree that i am creating and ran out of names i could add. I have had to split it into 3 Hierarchy tables and then draw a line from on to the other to show the link. (and this is still not enough as am only 1/3 done)

(Q) any other ideas or tables I can use that have no limits?

I like the heirarchy SmartArt as that automatically links the relations and like the ease of use (promote/demote etc). I know i could manually just add shapes, but that would require loads of formatting and adjustments