The OG6 "OmniGraffle Help" panel needs serious help. The navigation is minimal ("Home", next page -- no breadcrumbs) and stuck at the bottom of the window. Who wants to scroll down 5 or 10 pages just to return Home? The only Search available is the standard command-F "Find" panel, which controls searches only in the current window. No useful index. No links between topics. No PDF version of Help.