Epiclesis

Hello everybody ! I'm in search of a custom script command like "npctalk2", a clone of npctalk with a little modification. With npctalk, when a player click on a NPC, this NPC will display a message that all client in surrounding area can see. With npctalk2, when a player click on a NPC, he will display a "private" message (only the player who have clicked on this NPC can see the message). Does anyone have this ? Thank you and excuse me for my (very) bad english !