My character has a base shirt and a vest, both of which can be worn separately. So I first did the skin weighting for the base shirt (I manually fixed areas like armpits and shoulders), and then did the vest. But when doing the skin weighting for the vest, I encountered some problems, that is, the vest could not match well with the base shirt, because their weights were different in some parts, and it was difficult for me to adjust them to be consistent. If I could transfer the weights from Kevin and the base shirt to the vest like Maya does, I believe the problem would not exist.