How To Duplicate Objects Properly

Ok so I am trying to duplicate a set of eyeballs but it is not naming the new set of eyeballs. It just keeps all four eyeballs named the same. How do I make them new mesh with their own names please?
Screenshot: https://paste.pics/8J68N
Thanks,

Hey, You are doing it in ‘EDIT’ mode so they are all part of the same ‘Object’, you should duplicate them in OBJECT mode, that way they are separate objects. to get them to be different objects from EDIT mode, select just one eyes verts and hit ‘P’ = Selected, or select all the eyes, ‘P’= loose parts