These are not default features/settings within the theme, so would require customization on your part if you were looking to make such changes. Our themes are not encrypted, so you are free to modify them as you wish. Whilst we don't officially support customizations or offer these services, we do have a
certified partners page where you can find developers for hire. There are social media plugins which can allow you to log in with i.e. Facebook, as mentioned
here. Thanks.