Array as a field name?

I have a file that has a field for each month of the year(each field holds
the amount of pallets used that month).

FILE:  MONTHTOTAL

      A          R RECORD                   PFILE(FLDREF)
      A             CUSNO
      A             MONTH01
      A             MONTH02
      A             MONTH03
      A             MONTH04
      A             MONTH05
      A             MONTH06
      A             MONTH07
      A             MONTH08
      A             MONTH09
      A             MONTH10
      A             MONTH11
      A             MONTH12
      A         K  CUSNO

When pallets get added or subtracted from the warehouse I want to update
this file.  Since this is May(MONTH05), I would like to update only field
'MONTH05' with the correct data.

Is there a way to use an array as a field name?
        example:
 *
 * Array Index
D X               S              2P 0
  *
  * Save Current Month into a work field
 C                   MOVEL     UDATE         X              2 0
 *
 * Update HBI Customer Master Extension File
C     CUSNO         SETLL     MONTHTOT
C     CUSNO         CHAIN     MONTHTOT                           90
 *
 * Record Found; Update File Field
C     *IN90         IFEQ      *OFF
C                     EVAL              MONTH(X)  = CURTOTAL
C                     ENDIF

Thank you,

Frank Kany

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