cc

CC  -  add an address to the CC field

Usage:  CC address

The CC field contains the address(es) for "carbon copies" of your 
  message.  Use of the field is optional.
  
The CC command at the Send> prompt allows you to add more addresses to the
  CC field.  If the CC field does not exist, the CC command will create it.
  The command DISPLAY CC will show you the current content of the CC field, 
  and ERASE CC will erase the entire field; REMOVE will remove individual
  addresses.

Example: Send>display cc
         Cc: brennan
         Send>cc walter
         Send>display cc
         Cc: brennan, walter

For more help, type "help" and one of these topics:
  display   to   bcc   fcc   erase   remove   addressing   header-field
  set default-cc-list   set prompt-for-cc