Another small query:
As I told that there is a list of PDS on the panel from where the user can select any one.
This list of PDS is editable and the user can add PDS names to it as per his requirement. I have used VPUT for retaining the PDS names on the panel. But once I logoff from TSO, this list of PDS is lost. How can I retain this list (I want that the PDS names should stay on the panel until the user himself removes them)?