Manage Your Workspace with New Subtab Options
Where: This change applies to Lightning Experience for Essentials, Professional, Enterprise, Performance, Unlimited, and Developer editions. Lightning console apps are available for an extra cost to users with Salesforce Platform user licenses for certain products. Some restrictions apply. For pricing details, contact your Salesforce account executive.
How: Use the new dropdown menu on a subtab to close, refresh, customize, or promote it to a workspace tab.