Add/Edit Contacts while on a Phone Call

We need to be able to edit/add the contact list while on a phone call. Apple has that feature locked out for some reason. I've also needed to add contact info or give somebody a recent or missed phone number and I can't even do it while I'm on a phone call. I hope it's something they can easily add and I'm surprised that they haven't!! I did send Apple feedback concerning the issue.

 

Thanks, r6girl!!

I don't really like the method, but hey, it works!!!