Right way for inserting infiltration / Construction set in Openstudio

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I am struggeling with how to insert infiltration rates in OS.

I can do this at Space types / General but I can also do it in Spaces/Airflow. Does one override the other? Do they add up? I think this also applies to Design Specification outdoor Air...

I am also struggeling with how to insert construction schedules in OS.

I can do this in Space Types / General, but also in Facility / Building.

I am using OS 2.4.0.