Well Dear,

I dont think there is any way. but i want 2 share my trick with u.

Well open that assy and insert a new part in the assy (just like we work in top down design). Now convert all the skecthes u want to copy in that part using sketch convert entity command.

Now open that part and break/remove all the external references and save it.



wish this cud help u sum way.


regards

Deepak Gupta