The first is a contents list, which lists every section available with click-able links and sub-sections indicated by the depth of indentation.
The second is a set of LaTeX2HTML style navigation buttons on the top and bottom of each section (with thanks to Nikos Drakos). The NEXT/PREVIOUS links point the the next section forward/backwards in the help as defined by the order in the contents list and irrespective of depth.
The third is a simple search engine, to locate pages with a title or text that match the given search string. This feature is very simpilar to the command line application astfind.
These new features brought to you courtesy of Richard Beard, January 1998.