Google it. Seriously, go into a search engine and type exactly what you're looking for. "Making an NPC in Morrowind" is a good start. Somebody somewhere has either made a tutorial about it, or a YouTube video. I am 99% sure of this, since it's a rather popular thing, I would imagine. If you don't find what you're looking for right away, keep searching other combinations of words. Next would be "making a merchant in Morrowind" or even better, "Making a merchant in Morrowind Construction Set".
Just wait 'til you start getting some rather bizarre modding ideas though. Like trying to stage a fight between two or more NPCs. Or needing to write a script to make a policewoman arrest the player. That's where I'm at. And there are NO tutorials for that sort of stuff; it's all trial-and-error.

But for popular requests such as making NPCs or changing weapon/armor stats, I'm sure you'll find what you're looking for.
This post has been edited by Renee: Jan 6 2021, 02:16 PM