My thoughts come from messing around loads with character editors in all sorts of RPG, RTS, and MMO games. The most popular being "Phantasy Star Online 2", with the least expected being Illusion's Japanese porn games. Even though they're porn, they do have simplified menus that work for creating, giving personality, and others that I wish more games would take advantage of. I wouldn't mind, and would respect Rising World more (even Skyrim), if we could 'fiddle' with the entities attributes within mod tools.
For reference - PPD - Studio Pro -
(You would be surprised with how much more detailed these Japanese porn games are to the western games, or so I found. Not in pervertedness, more in customization and how you can give them personalities to roam and interact with.)
I apologize in bringing up +18 games as reference, just that I'm most familiar with them after playing around with numerous character creation systems. I at the very least expect a very quick "Google" from Red (or the other two) to be on the same page. I can recommend Illusion's "Premium Play Darkness (Studio side only) with how you can select animations, what voice to play, level of clothing (in RW's case would be layering in accessories), and poses. Even in HaremMate. For Rising World's case I'm suggesting the tool be kept to importing models (even from .png images), basic rigging, animation selections, voice selection, selecting where they spawn, how they spawn, and simple things like that. Doesn't have to be complex.
As a bonus (doesn't have to be done) it would be awesome if we could import models through .pngs. From Spore, Illusion games, and assumingly from "MikumikuDance" program. Doesn't have to be fully supported, just possible. I haven't even fiddled with MMD, though an option I want to leave open. If it can't be done, it can't be done. I create my characters through these Illusion games, even from any program that allows me to, thus this long-winded, and possibly confusing, suggestion.
If it can't be done, then well......too bad. I can live with it. I'm simply curious if this is possible. I'll happily toy with the NPC Traders in the end. Again, I apologize if this is obnoxious, yet wanting the most out of Rising World in that 'creative' manner. Even if I'm being stupid, I do hope something in here also sparks other types of thoughts. Simply wanting to explore this "Rising World" with customized NPCs also. Not just for comrades, also for inserting random hostiles or neutrals. Adding more.