Hiding fields

[gatorfe]

Inside FWM I am replacing date fields in the Folders area.  I don't want to delete the original fields and set the property "is hidden" to true.  I want to see them in FWM but I don't want the users to see them in Report Studio.  I published and saved the package but I still see the original fields(eg Date Created Old) and new fields(eg Date Created) too.  Is there a step I am missing to hide the old fields from users?  Thanks in advance. :)

[kulkarni]

Can you confirm if you are setting "Is Hidden" property in business layer and not in physical layer?