Advanced use of the File-Display Link
-------------------------------------

A. Controlling the display in the link.

You just came from the main menu "start" file.
You selected a link \[\] but hidden to you, the link actually had the
name of this file "sample01" embedded in it like so:

\[sample01:\]

The colon specifies that any characters after the ":" will be displayed as
text to the user in the menu screen.
Anything before the ":" will be hidden.

B. Substituting with variables.

When you have built up a wide range of files, the names of which may
change with time, you may find it inconvenient to go to every file
and change the link.  To make things easier, you may use variables:

\[\$MONTHLYREPORT:\]

and then put the value of the variable in the .hybrowrc file (note the "."
before "hybrowrc").

So if your file is  "december.report", then all you have to do is to put this
line in .hybrowrc

MONTHLYREPORT=december.report

and if you have many such files, you can create your own variable names
(careful! not to clash with each other) and just edit the .hybrowrc file
to switch when necessary.

HYBROW will substitute with "december.report" 
every time it sees  "$MONTHLYREPORT" in the menu ASCII files.

(NOTE: This variable substitution within square brackets is different
 from displaying the value of the variable in a HYBROW display, which
 uses backslash, tilde, variable name and then tilde, ie, \\~variable~)
 See [sample]

