ClampZero Controller dialog has 3 sections: Device Selection, Components, Heatsink.
User can change the ClampZero controller and Clamp circuit components and parameters.
In the Device Selection section, it's possible for User to freeze the Drain-to-Source Voltage parameter to choose one of the available values (button 
).
User can change the ClampZero controller. Auto Pick 
button allows to return to the automatic device selection.
In the Components section,user can view the parameters of each circuit components. To change a component, click on the blue button to the right of the calculator icon 
and click change. Select the appropriate one from the database and click OK.
In the Heatsink section, user can change the values of Maximum Thermal Resistance and Heatsink Area.
User can show/hide section content by clicking on the arrow 
in the header of the section.