Copy Net class from Physical to Electrical

I  Have DDR ADDRESS , DATA  and CONTROL . They are matched lengths and require specific spacing requirements and trace widths. Since the classes are needed in physical and electrical with the same nets I do not want to have to re-enter them in both tabs. 

I  Have DDR ADDRESS , DATA  and CONTROL . They are matched lengths and require specific spacing requirements and trace widths. Since the classes are needed in physical and electrical with the same nets I do not want to have to re-enter them in both tabs. 

Address and control will go into electrical constraints for length or relative propagation calc.  Physical class will have single ended trace widths.  Spacing class will have the spacing rules.

For diff pairs, what gets tricky is trying to put diff pair rules in both electrical and physical.  That is not needed.  IIRC, physical will override the electrical constraints on diff pair.  You can choose to either put the diff pair rules in electrical or in physical.  I generally just have the diff pairs in electrical and nothing in physical.

There are many ways to do this but for me I need the same classes in both physical and electrical. Certain classes that need matched length also have different physical and spacing rules. All I was asking if there was a way to copy the classes for physical to electrical without having to re-enter them. I guess the answer is no. 

Thanks