[Spanko]

Well if you have an NPC-Server it's a simple case of just making a serverside part set the nickname, like this system example:

NPC Code:

---

if (actionserverside)

  setplayerprop #n,#s(clientr.nickname);

//#CLIENTSIDE

if (created||timeout) {

  if (!(strequals(#n,#s(clientr.nickname))) 

    triggeraction x,y,serverside,;

  timeout=0.05;

}

---

If you aren't going to have an NPC-Server it's trickier, but can apparently be done by setting the players chat to "setnick nickname"

Both examples don't work offline though, anyway basically with NPC-Server any serverside NPcs can change players nicknames using setplayerprop #n. Without the same affect can be achieved by setting a players chat to 'setnick nickname'