How to make a custom npc?

Hello there i am looking to put a custom npc in the AH but im not exactly sure how to do this. ive tried several things but keep getting errors.. any help would be appreciated. thanks.

you asking how to make an npc?
or how to get it to stay in ah?
to make a custom npc you need to go into to the NpcQuest.sdata and add them in there by category
if you want an npc to stay you want to add the X,Y,Z coords into the svmap file
you can open all these with ZeroSignal's Shayia edit tool

There is a few posts here already about how to make a NPC / Edit so feel free to check out the link since it's very helpful:

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Editing a NPC that is already in game will require you to have:

LilProHacker's Data.Sah tool

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ZeroSignal's shay_data_edit_0-1b/c

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Python

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And Microsoft Excel or OpenOffice (to view)

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Those are the tools you will need if you are planning to edit or create an NPC. You can also do it in HxD but that's just a pain in the ass, and you would need a Hex Converter such as SubnetOnline which works pretty good.
Credits go to the Ubers here ^^ the rest will explain itself.