How to add contact in webmail?

There is a image in CyberPanel homepage showing that Rainloop contains Contact feature, but I just can’t find it in my server.

Should I enable it from somewhere?

Oh, the contact, I mean like, I always send e-mail to contact@cyberpanel.com for exemple, so I’d like to have a list of contact with it, than I can easily select it to send e-mail.