I have a piece of equipment (mechanical) with a set CFM or duct size coming off it , How do I go about creating a schedule that includes this CFM/Duct size? I got it to list the family name, manufacturer, voltage and the like but when I try to get the exhaust air cfm to list it's blank....i set up the cfm/duct size per type not instance in the individual families. Any assistance would be welcomed.