I have a multi-zone VAV air loop with ~25 independent zones modeled in OpenStudio/EP. Approximately 3 of these zones are also equipped with zone level gas-fired humidifiers (independent of the air loop). As far as I'm aware, EP doesn't appear to have a ZoneHVAC humidifier object so I'm hoping to find a way to adapt the Humidifier:Steam component to mimic a zone system. Is there any feasible workaround or have I hit a dead-end?