Changing parameter of structural framing family

I’m trying to prevent creating cutback length 12.7mm(1/2 inch), the default setting by dynamo.
So, 12.7mm to 0,
Is there any solutions to achieve this? I couldn’t find any parameter related to ‘Cutback’…
Modify Framing Element Cutback | Revit 2020 | Autodesk Knowledge Network

Right now you’re requestion the parameters of the family itself. It’s either a type parameter or a instance parameter. So you should try to request either the parameters from the familytype or from all the placed instances of the familytype.