Option (B) -- Setting this option "YES" causes CPD to default to displaying 
only files which exist in both directories.  The default may be toggled 
with the command line "B" option.  If this option is "YES", make sure the M 
option is "NO"; otherwise, you will not like the result.

Option (M) -- If this option is "YES", CPD will default to displaying only 
files in the first directory which do not exist in the second directory.  
The default may be toggled by using the command line "M" option.  If this 
option is "YES", make sure option B is "NO".  Take my word for it.

Option (A) -- "YES" here makes CPD set the archive attributes of files in 
the first directory by default that are duplicated in the second directory. 
I can't imagine anyone wanting to make this the default mode of operation, 
but here it is if you have a need for it.  The configured default can be 
toggled with the command line "A" option.

Option (S) -- As distributed CPD defaults to finding only non-system 
(directory) files in the first directory.  A "YES" allows CPD to always 
find all files, including system (hidden) files.  The default set here can 
be toggled with the command line "S" option.  This option does not affect 
the second directory, where any matching files are always found without 
regard for their attributes.

Option (P) -- CPD pauses, waiting for a keypress, each time the screen 
fills, if "YES" is selected here.  "NO" defaults to continuous scrolling, 
which can be paused with Control-S.  The number of lines on the console 
screen is obtained from the environment.  The chosen default can be toggled 
with the command line "P" option.

Option (F) -- Choose here whether you want CPD to send a form feed to the 
printer after it prints the file display.  The option has no effect unless 
the command line "L" (echo to printer) option is used.  The form feed 
default can be toggled with the command line "F" option.