You can use an order control field on a template in two ways: 
  
   - Insert the field on a Medical Records template to enable a user to view or enter lab, radiology, or immunizations order or result information in NextGen® Enterprise EHR at run time.
 
   - Insert the field on a Practice or Practice Popup template to enable a user to manage all patient orders across a practice and update practice order filters in NextGen® Enterprise EHR at run time.
 
  
  
   Note: You can also use the  to order lab or radiology tests. You can use both the Patient Lab Order trigger and an order control field on a template. When the trigger is executed, the information displayed from the order control field can be refreshed to include the new lab or radiology order.