Working with Eagle 5 I had several times copied a sub-design. The procedure worked like this:
open only Schematic:
Name components and Nets, so that they don't end with number (like R1A)
Cut sub-design
Paste sub-design (the copied parts have now R1A1, R1A2, .... names, only GND stays with the same name)
open only Layout (do the same):
Cut
Paste (the copied parts have now R1A1, R1A2, .... also GND gets renamed to GND1, GND2 ...)
but that's easily correctable.
Schematic and Layout are almost always consistent
Now working with Eagle 6 the procedure doesn't work anymore (no CUT button, so I use Copy):
open only Schematic:
Name components and Nets, so that they don't end with number (like R1A)
Copy sub-design
Paste sub-design (the copied parts have now R1A1, R1A2, Nets are not renamed and have identical name !!!)
open only Layout (do the same):
Copy
Paste (the copied parts have now R1A1, R1A2, .... also GND gets renamed to GND1, GND2 ...)
Therefore now the Schematic and Layout are total mess.
I was looking for UPLs to performe this taks, but without any success. So if there a better way (other than downgrading back to Eagle 5) I will be happy to use it.
Pavel