One of the ways to pally the limitations of any single genealogy is the ability to click on a person's name. This opens Factbook and reveals other relevant graphics. However, this feature is not consistent throughout the diagrams. For instance, in the Biblical People Diagrams, "Family Tree: Abraham", the sons of Keturah are not clickable (there are several such groupings in that diagram that are not clickable). In "Family Tree: Isaac" and "Family Tree: Keturah" they are clickable.
The end result is that one cannot necessarily navigate directly from one genealogy to the next.