Mass family by Dynamo

hello I try to create a mass , in the mass family environment in Revit.
I run the script and it does say successfully created 3 different masses,.
I do not see them in the view of the Family then if I import into revit project, they are there and I can select them although …there is still work to do.
Is it this supposed the normal behave (not seeing the mass in the Family environment) or am I missing something?
(Revit 2017 . Dynamo 1.2.13trymasses1.dyn (40.0 KB)