then if we can't add new "For now" we will just have to back up and replace files for now?? Would that still bug out??
Well... I guess backing up the assets files would be advisable as in any case... Yes, we have to replace the current animations with new animations, overwrite the files, then recompile the asset .unity3D cabs and either overwrite the originals or make a sideloader zipmod to replace them on late update.
The problem is, and maybe I didn't phrase myself well, once you replace, let's just say, missionary or doggystyle positions in the game with Futagirl on Futagirl missionary/doggystyle, playing with a base gender male character and engaging a base gender female character will not work. Because the male frame has certain bones in it's rig as does the female (both are unique), the Futanari girl has a female bone rig with the male penis addition (which are new bones) making the Futanari also unique for animations. Ergo, the game would only work for Futa if we started swapping out anims it would break base gender interactions for those positions we overwrite.
I never got around to playing with this much as the community has kept me very busy lately. However, I assume that Futa is currently rigged to be solely a female character with female positions correct? In the past we discussed this briefly I believe. You can make a futa main but then you are limited to lesbian style positions right? You want to be able to have a futa main that can execute male position animations and have regular interactions with female and futa characters as the male type, correct? So you need the male frame subbed with the female frame with the penis rig. This is not an easy task, because this means cloning all those animations (literally hundreds as these animations are a series of singular thrusting animations looping with random substitutions of other animation loops between to vary the look) to work with the female bone rig while aligning the male penis on the female rig. It sounds easy, and I thought it would be, but the issue is that the male bone rig and female bone rig are altogether different. The animations cannot be swapped by simply designating a Futa rig as male. Which again I know sounds easy but it's not. Each "position" in the game is a collection of tiny 1-3 second animations with a final 5-10 second orgasm anim and then a 5-10 second idle loop. A "position" can be anywhere from 15-30 loops. The bodies, heads/faces, hair, and genitals are all independent rigs with their own animations attached for each position. Male/Female variations have their own separate rigs for these meshes.
To make this a reality, all male position animations for all rigged meshes (body, head/face, hair, genitals) would need to be swapped for female parts then reanimated from scratch and those updated clips either saved over existing assets or modded in to respond to the position call when the selection is made in game.
I like your idea about assigning positions to furniture, but again, you are talking about making custom animations from scratch. Cloning the available position parameter (however that is coded, never looked into that) onto other furniture models sounds more doable, but all the animations would be 100% original works, and you would still need to use the rigged meshes from the game to do that as well.
Either way, it is a big project, and having some more people committing to it with some CSharp scripting and 3D animation knowledge would be far more ideal than just one or two people plugging at it alone.
UPDATE: Ultimately, if we theoretically made this mod, we would need people to know that they cannot make a normal male main. It would have to be Futa main only as all male anims would be replaced with Futanari girl anims. Thus a male character engaging as a male would break the Hscene. That is what I meant in a roundabout manner.