Editing new crystal layouts for financial reports in 8.8

After upgrading to 8.8 PL10 I decided to investigate the new financial layouts for Crystal. When I opened the layout however I couldn't make much sense of how it is structured or even functions, it seems to reference a PLD table that I couldn't find under tables, views, or stored procedures. Any advice on how to better manipulate this report would be great.

They are all structured similarly so lets use the new balance sheet as a reference.

-John-Michael