Sorry I can't find this anywhere. I have a mid 2012 MBP and a new (2015) MBP-R. I thought I would have a chance to name the new one when I set the thing up, so that I could distinguish it from the old one. No opportunity given. So now when I am trying to find devices through bluetooth or "find my device" these two machines look identical i.e they both say "Erica's MacBook Pro" which was set up automatically for me. If I could simply put an R on the end of the MBP-R it would be lovely. It's not like I ever want to make the mistake of erasing the wrong computer should it get lost ! Could there be an easy way to do this ?