I only have a couple of lenses fine tuned, but this thread reminded me to write them down, and in the process I found an oddity in the D7100 (and I suspect others). There is a menu entry "List Saved Values," into which one can enter a lens by number, whereupon absolutely nothing appears to happen except that the lens now has a number. It does not actually list any values. I have yet to find any way other than putting the lens on that actually returns the value.
Is there some secret list somewhere that I'm not seeing?