A multi-function thermostat for a building space includes a user interface capable of visually representing an event schedule. The thermostat is configured to receive a request to modify an event schedule associated with the multi-function thermostat. The thermostat is configured to receive a puncturing event with a time interval that conflicts with a time interval associated with an existing event. The thermostat is configured to store information associated with the puncturing event in a memory. The thermostat is configured to modify the time interval associated with the existing event. The thermostat is configured to add the puncturing event in the event schedule. The thermostat is configured to add an adjustment event in the event schedule.