Display Commands - CFS Editor

 DUPK  Duplicate ISAM key allowed   NDUPK  not allowed
 RD    Redefine special char. C (Copy) and E (Erase)
 IS    Convert SAM file to ISAM for extended editing functions
 SAM   Rewrite ISAM file to a SAM file
 Edit Commands: 
 INS   <n>,<:col:> <len> <item>   : Insert a column range
 DEL   <n>,<:col:> <len>          : Delete a column range
 SPLIT <n>,:col:                  : Split records
 JOIN  <n>,step                   : Merge split records
 IL    <n>,<len> <item>           : Insert lines in a file
 ER    <n>                        : Delete records
 IR    <n>,<file>,<param>         : Insert records from another file
 -->                              Merge two sequential files
 Mark records             Overwrite 1st column of the ISAM key with
                          A/B/C/E/I/J/M/R/*