OPPID SS6 How to control model validation contents

Hello All,

For OPPID SS5, model validation doesn't check if the valve specification matches piperun specification, no error will show even no specification filled on the valve. But in SS6, model validation will report error if the valve specification  doesn't match the piperun specification. I'd like to know where to control the check contents. I don't want valve specification to be checked since we never fill it. Thanks a lot.