Rename the Saved delivery addresses

[hoknight]

Hi,

1.How to rename the Saved delivery addresses?
I have tried to follow this page but no luck: https://forum.virtuemart.net/index.php?topic=125788.0


2. How to translate this word: - Default (Same as Billing)

VirtueMart 3.0.12
Joomla 3.4.8

Thanks.