Ad prefix to the family type by dynamo and rename the family name and push the new names from dynamo to revit

[SeanP]

The problem you are having is because you are just collecting the Elements (instances) of each type, not the Family Types nor the Families.

See this post:

Rename types with Dynamo

Hi everyone, I have tried to rename types in revit using dynamo, and i got this warning: The parameter is read only, [Rename Type] is it impossible to rename types with dynamo? Thanks