Wall parts Edit / Shape handles of wall layers


Hi everyone,

Can someone please help me. Is there any package or node with which i can get the shape handles of the wall parts?
I want to offset the outer wall layer in all directions as seen in the picture.

Please let me know if this is possible in dynmao.

As seen in the picture the length and height values are greyed out so i cant change them in Revit and also in dynamo

Thanks.