Second things first, with NFCU and any credit union, I believe, you always have a basic share account. I see you have referred to that as taxable savings, right? Why not transfer into that? Or are you saying the CDs were within a qualified retirement account?
As for maturity options, the good places let you set that at account open. Some let you set it online anytime during the life of the CD. The worst I’ve encountered is Synchrony. Not only can you not specify disposition when you open the account, you have to call in and try to get a hold of someone to change the disposition within 30 days of maturity. But then the best part is that they continue to send you messages, both in email and on your account page, claiming you haven’t set the disposition. Why? “That’s just how it works”, they say.