You can already do this..
Load up the staff you wish to copy
On the right hand side of the screen there is a section called Options - One is Import and the other is Export
Export is the one for the staff you wish to copy, You simply save it then in the FMRTE directory (I have added another folder in there labelled coaches) and that is where I save what I want. Just remember to label them as you want e.g Def Technical or GK Shot Stopping etc
Then when you want to import them onto another staff member just use the Import button and you're all set.
Same can also be done with players. If you wanted to turn an Argentinian yth player into the next Messi or someone into the next CR7.
Hope this helps you.