Add phonetic alphabet underneath letters in Large Type pop-out

I mainly use Large Type to be able to easily see the character number requested when trying to pass account security - typically over the phone. For example, I'll be asked for characters 3, 5, & 8 from my account security password (different to online account login password).

Large Type makes it easy to identify the character numbers requested, but I can never remember the phonetic alphabet. It would be really helpful if Large Type could add the phonetic alphabet underneath. E.g. underneath the letter H would be 'Hotel' in smaller font.

Additionally, there are multiple accepted phonetic alphabets so it would be helpful if users could select which one they want to use.