[cbk1994]

Not really. You can't modify that folder via scripts serverside, and clientside you'd have to use client-RC stuff which is typically for privileged scripts only, I think.

Did you try using findNPC to find each of the local DB NPCs and then calling destroy() on them?

Alternatively you could give yourself partial folder rights like "rw npcs/localnpca*" and then "localnpcb" etc (doing this intelligently if a lot of them start with the same few characters).