How to browse a knowledge system
                   ================================

Browsing <HBAC> is the dominant feature of hypertext systems of information.
The various PC-Hypertext commands for browsing are:

Arrow keys         The easiest approach to browsing uses the Up/Down
==========         arrows to select topics in both ASCII and network
<FILE13 1 21>      files, the ENTER or RIGHT-ARROW key to shift the display
                   to the selected topic, and the LEFT-ARROW or ESC keys to
                   return to the network.

Number keys        With network files (and NUM-LOCK off), press NUMBERS to
===========        move the cursor to that topic.  Press ENTER to select that
                   topic.

Level changes      With network files, press the RIGHT arrow to select
=============      subtopics (same as pressing ENTER).  Use the LEFT arrow
                   or press the DEL key to move to parent topics.

Back jumps         After selecting a sequence of jumps with ASCII files,
==========         press the LEFT-ARROW or F3 to jump back to previously
                   displayed files.

Scroll select      With ASCII files, the PLUS (+) and MINUS (-) keys scroll
=============      a highlight line to select jumps to other files.

Vertical scroll    The PgUp/PgDn, HOME, and END keys scroll the text in
===============    both network and ASCII files.

Horizontal scroll  With ASCII files, the CTRL-RIGHT and CTRL-LEFT arrows
=================  shift the display horizontally to display information
                   from column 1 to column 255.

                   References: -------------------------------------
                        Commands, arrow key             <FILE0A 1 10>
                        Commands, arrow key             <FILE0B 1 8>
                        Commands, MAIN menu             <GUIDE2 2 2>