In WA release history page We see that WA will have a new feature "member profile access settings (by field) for public/members separately" . What does it mean exactly?

We would like to have this function:

Only the registered members can see other members' contact info such as email and telephone. Instead of seeing the email / telephone number, non-registered members can only see a link " Contact this member", when they click this link, they will be asked to register the membership first.

or they can send this member a short messge throught our WA website without knowing this member's email.

Can we realize this function?