You have object Windows main a really late answer to to the library so the work as one part that. I think this will do keeps them together.
Maybe now when you send it to TW from SU20 you have to use the Import feature, because when I tried it the other day, that's what I had to do. Just read the program's basic help. A few weeks ago, Twinmotion released a tips and tricks short video on Youtube that shows how to group objects together and move the pivot point to the center of the group. If you need to access Rotating a material, click on the "More" text below "Scale".
