I try to create a relation in my model. But I test it by the "position" function which has three function like "Stop at Clash" ,"Update Relations" ,"Physical"
"Update Relations" for test-relation. I use "Update Relations" it's ok ; nevertheless , "Physical" isn't ok. I use Physical to test my relation , but I don't know why my model can't move? Does Physical have any Constraint? I need somebody help me. Thank you very much.