Add new Quests EP8

Hello everyone,

i'm searching for Guide or a hint, how i can add a new quest.

I've already added quest.enc , quest.scp and the cabalmsg.enc.
My Quest is displayed in the client when i open the quest window ( "t").

My actual problem is, that i can't click my npc. I tried editing scriptmsg.enc( i think that one is fine)
But i didn't Understand everything in Script.enc . Especially the First two "groups".

Another Problem that Could be possible, is a wrong edited NPC.

Maybe someone can give me a hint how to edit script. Enc correctly.
I think the npc i can Check on my own.

Thanks in Advance guys!