@Rarefacer I can not try to use flags and stuff...
mass and stuff, I also did not write...
because I do not quite understand which buttons should be clicked and which ones do not, and so on.
very many steps without example
need to see a living example of working with such objects.
in the convert videos, there are no examples. since change one car to a similar one.. and in the process do not create something new
PS it was not sarcasm. sane sense and a little bit of humor. I understand that updates carry improvements sometimes along with new problems