//DD1 DD  UNIT=3800,MODIFY=(A,0),CHARS=(GS15,GS10)

In this example, the MODIFY parameter requests that the data in the copy-modification module named A replace variable data in the data set to be printed by the 3800. Module A defines which positions are to be replaced and which copies are to be modified. The second subparameter in MODIFY specifies that the first character arrangement table in the CHARS parameter, GS15, be used.