Creating driver events Use this procedure to manually create a driver event. Select TrueCost Configuration. Open a TrueCost configuration. Select the Drivers tab and on the list of drivers, select a driver name with driver type as By Event Date. On the Driver Event list, click Create. Specify this information: Dimensions Specify the required dimension values. Event Date Specify the event date on which the driver value will be used. Vaule Specify the value being measured by the driver during a patient-related event date. Click Save.