Hi @All, I need to change some parameters iteratively via script to wind atlas class, related to several GWC object, with wasp (version 11.1), . I see that there is a typecasting that allows it (CastRveaWeibullDistributionToRveaWeibullDistributionEditable) and I can successfully change wind atlas properties (A,k) with it. Unfortunately I cannot access sector frequencies, that seems to be a property of other objects, (I'm guessing the class: IRveaWeibullWindEditable). Does anyone know which object to access and the proper typecasting method, in order to allow it being accessible in write mode by user ? Thanks in advance for any hint!! Gianluca