You can enable the operator to modify CNOS parameters by specifying OPERCNOS=ALLOW on the APPL definition statement. The parameters can then be changed by a MODIFY CNOS command, which functions the same as an APPCCMD macroinstruction with the CONTROL=OPRCNTL and QUALIFY=CNOS operands specified. The operator can then also use the MODIFY DEFINE command, which functions the same as an APPCCMD macroinstruction with the CONTROL=OPRCNTL and QUALIFY=DEFINE operands specified. The application is notified when the operator-issued commands have completed.