At begin You must have information about operator. To do this use command:
OPDDP:dir=;
OPCAP:dir=;
OPCGP:dir=;
Then
Block operator equ and erase operator with command OPERE
Next step
OPERI :DIR=...,EQU= [ ,OPC= ] ,PRG=,TRAF= [ ,OCUST= ] [ ,MODE= ] ,TYPE= [ ,PCM=] [,TRM=];
All parameters, like...