I cannot find a “Signature” option on my NavBar either.
I need to see how Xenforo imports subscriber accounts (or if it even does). We may need to start them all again, or it may import as-is.I was wondering about that, too.
I'm still charged $3 a month for Copper but lost access to my signature before the changeover.
My signature is appearing now on the new forums, I just can't edit it.