additional addressbook col Name(phonetic) for sort

[yamar]

Now, config of addressbook sort section says,
"sort contacts by this col (preferably either one of name, firstname, surname)"
I want to sort by None of those.

An ideograman ideograph, ex Japanese, set multibyte character for name, firstname, and surname.
these character code are not order by phonetic.

so, I want additional another col for sort. "Name(phonetic)".


thank you.