Have found some information about it and it can be done, but is a bit technical. But this will explain how to do it, how to replace faces, poses, objects etc. https://stable-diffusion-art.com/controlnet/ 

Also, there shouldn't be any issue using Poser to do it as I can see, as there is already someone that has made a simple 3d posing tool that can be used. But Poser seems much better suited for this compared to that, so that is perfect :D