The INP feature must be enabled before the chg-inpopts command can be entered.
Recovery
Display the status of the INP feature. Enter the rtrv-ctrl-feat command.
If the feature does not appear in the output, then the feature is not enabled. If the feature has a status of OFF, then the feature is enabled, but is not turned on.
Enable the feature as necessary. Refer to the Commands User's Guide and to the INP/AINPQ User's Guide for more information.
Re-enter the chg-inpopts command that generated this error message.