This is the example I have to copy. https://vimeo.com/manage/videos/592097670/08c7c0950c

For the feet i was using reach target with dummies and for the hands the same and all working. but the body has to move with the chair which was key framed but I need to seat the character on the chair while this is moving and I cannot get this. I saw that there is also reach effect but all that is confusing with me. Someone who would you like to help me?? I was also thinking I might do some physics for the chair moving. or the collapse feature but no idea how to get this sitting the character properly when it is moving as the video example. I made motion capture with motion deep. That part was great. But now I cannot connect with the pro properly without avoiding the penetration of the body.  I was also using rendering farm with iray. In photo realistic all look amazing with iray. If I can make this project, I will be celebrating. It is one of the most difficult things I have ever made. But we really lean with all these challenges. Here you have a video of the first scene I made with iray.
https://vimeo.com/592513043/acf5c104a2