Require O2 Method if O2 Sat documented

In the Vital Sign Range Department Settings you can set Site Required for temperature, pulse, blood pressure, & weight but there's no option to require O2 Method if O2 Sat is documented and we have staff failing to remember to document that patients are on O2 or on room air and we have claims being denied and losing $4,000 per hospital stay on these patients on continuous oxygen so we NEED the ability to require the O2 Method ASAP!!!