The sort/filter content tab provides the ability to filter against an empty or non-empty field to acquire lists of incomplete objects. This feature provides the user(s) with simplified work distribution, the ability to pick unassigned items as well as improves finding incomplete data or objects. On the quote page, click on the setting icon .
The user(s) may then perform "Assign Quote to Me" to manage ownerless quotes. For more information, please refer to 'Managing Your Quotes'.