This feature is available only in Pedigree Explorer (not BreedMate Pro or Lite).
The descendants chart shows all the offspring for the selected entry for up to eight generations. Here's a zoomed out view:
Of course you can zoom in and see the details as well, as shown below:
This simple to read format shows mates going across the page (and with white background) and offspring going down the page with either blue or red background for males or females respectively.