You can probably get what you want by clicking on "Show options" at the bottom of the screen and increasing the values for the number of generations of Parents, Children, and Other to display. Raise them all the way to 15, and you can scale back from there if you need to.
1 gen 2 gens 3 gens 4 gens 5 gens 6 gens 8 gens 10 gens 12 gens 15 gens
Children:
1 gen 2 gens 3 gens 4 gens 5 gens 6 gens 8 gens 10 gens 12 gens 15 gens
Others:
None 1 gen 2 gens 3 gens 4 gens 5 gens 6 gens 8 gens 10 gens 12 gens 15 gens
