There are a lot of areas in FP12 which are missing copy functions. Rather than create multiple ideas, I'll just create the one.
Areas which would be nice to have copy in:
1) Copy quick templates
2) Copy workflow processes
3) Copy fields
4) Copy shared fields
5) Copy agent web to customer web (ie: a button the customer web form which states "copy from agent web")
6) Copy workspace item
7) Copy email templates
8) Copy users
9) Copy imports (the button is there but non-functional. Depending who you ask, thats either an idea or a bug... IMO, its a bug, the button is there)
10) Copy searches
There might be more but that's all I can think of.