Hi @Anonymous,
1)you can get the builtin parameters using
element.get_Parameter(BuiltInParameter.your_parameter);
2)If you know the name of the parameter
element.LookupParameter("Your parameter as string");
To set the value for the parameters
element.get_Parameter(BuiltInParameter.your_parameter).Set();
element.LookupParameter("Your parameter as string").SetValueString("string value which you want to assign to your parameter");
Naveen Kumar T
Developer Technical Services
Autodesk Developer Network