>*  EDITOR= HARRISON@RPIECS,STEPHEN@RPIECS,
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -----------------------------
>*          COMSPRT3@RPIECS
  -------------------------
 
Perhaps it is clearer now.  The program that extracts keyword/value pairs
from the  list header  does not  know anything about  the meaning  of the
keywords;  if you  want, you  can put  "Sxjkdsf= EWREWREWW"  in the  list
header, and it will happily record that there is a keyword called SXJKDSF
for this list  whose value is EWREWREWW. The comma  has a special meaning
for the EDITOR keyword,  such that it does not make much  sense to have a
comma followed  by a blank, but  the list header processor  does not know
about that. It  finds a blank and  happily records the end  of the EDITOR
keyword, and  anything that follows  this blank  is a comment,  until the
next keyword.  If you want to  "continue" a keyword, you  have to specify
its name multiple times:
 
* Editor= HARRISON@RPIECS,STEPHEN@RPIECS
* Editor= COMSPRT3@RPIECS
 
  Eric