One way to do this is to copy the lockdown [GPO] and edit the copy to produce the new set of restrictions.
Morris Minor The Minor van formed the mainstay of the GPO's small van fleet for almost two decades.
Active Administrator automatically maintains a GPO history, allowing rollback to a particular version of a GPO.
It still contains teleprinter tables along two sides with the teleprinter tables along two sides with the teleprinter cases still in place, each sporting a GPO badge.
I have done telephonist work for eight years with the GPO.