I dont think this thread also helps. Again I am not trying to restrict the segment values or attributes in a DFF at all. The requirement is to restrict the DFF itself to a functional user to have read only access to one Descriptive flexfield as I mentioned in my last update.
Earlier I was able to restrict a specific valuset for a particular user. So user can update or view only one valueset but not all valuesets in the system. This requirement is also a simialr requirement. When I am following the same steps its not working for DFF.