T) and O) - DEFAULT FILE TYPES

The default file type extensions used by ZCNFG are shown.  You may wish
to choose another default filetype extension for configuration overlays
(.CFG files) because of conflict with your system standards.  Otherwise, 
leave these as is.  An explicit filetype on the command line supercedes 
the default, allowing you to configure files whose filetype has been 
changed from .COM to something else. 

Z) Z3ENV AUTO-INSTALL

When set to YES, your current Z3ENV address will be installed in the 
target program, just as if you had invoked Z3INST.COM.  Nothing is done 
if the current system is not ZCPR3x.  Set this to NO if the target program 
is intended to operate in a CP/M system.  It is not needed for target
execution under ZCPR33/4.  Set it to YES if target programs are likely to
be executed by a debugger like DSD or DDT which do not auto-install.
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A) ALTERNATE DU (DRIVE/USER)

Use this item to select an Alternate Directory.  The Alternate Directory 
is the place ZCNFG expects to find CONFIG.LBR if it exists.  This is also 
the directory which will be searched for a CFG file whose directory has 
not been specified explicitly on the command line.  CONFIG.LBR and ALT: 
are two of the elements in ZCNFG's search path. The third element of the 
search path is selected by menu item D.

You may assign an explicit DU, or use wildcard notation for an ambiguous 
directory spec that will be resolved when ZCNFG is invoked.  An explicit 
DU (like B31 or D15) is usually most convenient, especially with a hard 
disk.  Ambiguous specifications are difficult to remember but may be useful 
for Floppy Disk systems.  Examples:

          ALT assignment     ALT: when ZCNFG is invoked
          --------------     --------------------------
            ?? or ???        current Drive and User
            A? or A??        Drive A, current User
              ?14            Current Drive, User 14
              ?8             Current Drive, User 8
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L) CONSOLE LINES PER SCREEN

Set this to the total number of lines your terminal displays.  This is 
a default value which is replaced at execution time by that from the Z3
Environment.  ZCNFG uses this number to manage menus and help screens 
properly.  For demonstration purposes, values are limited to a minimum
of 12 and maximum of 80.

C) CONFIGURATION LIBRARY

You may change the NAME of the library, but not the extension, which is
always taken to be .LBR.  This library is made with NULU, VLU, LPUT, or
equivalent.  If you put all your CFG files in this library, you will
conserve directory entries on your disk.  The library must be located in
the directory you have assigned in menu item A.  When ZCNFG is invoked like:

   ZCNFG [DIR:]FN[.FT]  [CFGFN][.FT]  (note no DIR: in the 2nd argument) 

then the LBR will be searched first for the CFG file.  This method is 
faster than searching several directories for CFG files.
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D) DEFAULT DU FOR THE .CFG OVERLAY FILE

This item toggles between DEFAULT and TARGET directories.

If you choose DEFAULT, then missing parts of the DU portion of the filespec 
for configuration overlay file are provided from those for the logged 
directory.  This is exactly the way ZCPR3x parses, and is an appropriate 
choice if you normally invoke ZCNFG with the CFG file present in either 
the current directory or ALTernate directory.

If you choose TARGET, then ZCNFG virtually logs into the TARGET file 
directory after it has been parsed from the command line.  This choice is 
appropriate if you normally invoke ZCNFG with the CFG file present in the 
same directory as the target file to be configured or the ALTernate 
directory.

Note that if both the target and CFG files are in the current directory, 
these choices become equivalent.  Also, if your CFG files are normally in 
ALT:CONFIG.LBR or in the ALT: directory itself, this choice is irrelevant.