Sorry. My message was not sent, the text disappeared. My question was this. When I do calculations, I sometimes need to correct the model. I go to spaceclaim and edit some nodes. After I update the geometry in the workspace, all the contacts that I configured fly off, there may be a hundred of them. It is very uncomfortable. How to update nodes separately so that the old contacts do not disappear? So that you do not have to set up all the contacts again.