The Focused Inbox is great; We today apply a lot of Email rules and keep our Inbox clean, moving email into folders. Most times there a lot of important emails lying unread in our folders and would love to have more rules to be applied so that :
1. They go into separate folders
2. For specific scenarios, and customizable settings, they would go into the 'Focused' Section of the folder.

The Focus Folder rules would be user provided and not automated like we have for the focused Inbox