[Closed] Webmail help

I've got a Yahoo email address which isn't the easiest to remember or spell out so I've got a directing address which I set up ages ago so that when you hit "reply" the message gets sent to the easy to remember/spell directing address and I pick it up from Yahoo as normal. Equally, when I gave out my email address it's just the dead-easy one directing it to Yahoo.

However my old directing address is no longer valid, I have a new one but how the hell do I change it in Yahoo Mail? Been through account settings in both the new and "classic" Yahoo Mail and can't find a way to set the "reply to" address. Google gave me several hits, all of which give out of date info. I can't find any way to alter the reply to address or even remove it entirely.

Anyone know how to sort it?