How to write when speakers spell words?

When the speakers spell:

1. Insert a space between each of the letters. Do not use comma, stops, dots, or hyphens to separate the letters.
2. Except when it is a special project, do not expand the letters, if the speakers say "Jei" transcribe "J". 
3. Except for the case of a special project, write each letter in caps: A B C D E F J, etc.

When there is the case of a special project a screen with instructions will appear with any particular guidelines to follow.