SUM
FIELDS operand: You can use symbols where you can use fields (p,m,f and p,m). A symbol for p,m,f results in substitution of p,m if FORMAT=f or symbol,f is specified.
Example 1
SUM FIELDS=(Z_Field1,C_Field1,ZD)
will
be transformed to: SUM FIELDS=(22,8,ZD,6,5,ZD)
Example 2
SUM FORMAT=ZD,FIELDS=(C_Field1,Any_Format)
will
be transformed to: SUM FORMAT=ZD,FIELDS=(6,5,12,3)