I am using Outlook 2010 on a server running Windows Server 2008 R2. I want to sort the inbox and other folders first by read/unread status, then by received date.

1. I can sort by received date by clicking on the Received column heading, or by setting "Sort items by = Received" in the View settings, but this did not work with the Icon column. Is there a way to sort by read/unread status by using the Icon column?

2. I heard that the "Filter E-Mail" function and the Search > "Refine" function both provide an "Unread" option, but the "Filter E-Mail" icon and all of the "Refine" options are disabled (greyed out). How can I enable them?