Contacts / Address book

On the Rainloop website, it shows an option (icon) on the top that allows you to import contacts. In the cyberpanel version of Rainloop, the icon is not there and there are no options to save contacts.

Does anyone know how to save contacts or have an address book in Rainloop through cyberpanel?

I am curious what everyone else does for contacts? For example: ON your phone, do you just maintain your contacts separate from your email?