Quests are very beautifull part of the world of Lineage 2, especially Low rate servers.. I've come across with so many questers in the past, that enjoy questing.. All these donation servers especially in compbination with high rates basically killed the L2, where questing doesn't matter, where half of their server population never even seen and been in so many places of L2 world.
I must say -there is not a lot of info on this subject, been browsing, surfing around for quite a while around net. I've tried +-20 popular enough servers, been checking their client side, and in-game q, -same stuff, everyone so far had a problem with one-time q orange marker. Isn't there realy known method for Interlude that would sort them? Anyone? pls share.. :/ (where to sort them?..)
Since questname-e has a chance to flip between orange and blue for one-time and repeatables, I hopet to find it there. experemented quite a bit around the file, unsuccessfuly. Newer chronicle versions, as I read, may have some options in npcgrp, but Interlude doesn't seem to have much there, apart from asigned quest for particular npc..
An idea came to me that may b it could b sorted out by sendPackets on visual aspect for client to project,..under similar methods/conditions as quest "isStarted" or something.. since once you take the q, state changes and marker disapears till the end... to try to use "isCompleted" state into similar way, but after browsing (qite a bit)around the source could not find absolutely anything close about it on server-sided part.. :/