Conditioned floor area adjustment in OS?

Is it possible to somehow adjust the conditioned floor area in OpenStudio?

By default the conditioned floor area equals the total floor area.

Don't add any HVAC system serving the zone.

See the DetermineBuildingFloorArea in OutputReportTabular.cc:

if ( Zone( iZone ).isPartOfTotalArea ) {
        buildingGrossFloorArea += curZoneArea;
        // If a ZoneHVAC:EquipmentConnections is used for a zone then
        // it is considered conditioned. Also ZONE SUPPLY PLENUM and ZONE RETURN PLENUM are
        // also is considered conditioned.
        if ( Zone( iZone ).SystemZoneNodeNumber > 0 ) {
            buildingConditionedFloorArea += curZoneArea;
        }
    }