All of your action item lists can be sorted — alphabetically, or by priority, rating, effort, workstream, due date or status — by clicking on the column header. This is a great tool for pulling the action items you need to focus on to the top of the list.
Filter any list by clicking Filter at the top right of any list of action items. Check and uncheck different filters to customize your list. You can also Bulk Change action items to change many action items' owner, workstream or other attributes.