How to Focus a Yahoo! Mail Folder on Messages from Your Connections

At the focus, the family comes together and sits down — at least in Ancient Rome, where "focus" still meant "fireplace", among other things.
In Yahoo! Mail today, your hottest contacts' messages come together in the focus, and you sit down for a wider virtual family gathering:
›› "Focus, focus, focus," they say. You do: you see only the important emails — emails from your Yahoo! connections — in your Yahoo! Mail folders.