The SUPPRESS phrase causes a COPY statement to suppress the listing of copied statements. For its duration, this type of COPY statement overrides any *CONTROL or *CBL statement.
If the copied member contains *CONTROL or *CBL statements, the last one runs once the COPY member has been processed.
For a nested COPY statement, SUPPRESS is in effect only until the next COPY is encountered. Suppression resumes after the nested COPY is completed.