We've enabled you to be able to Bulk Select emails on a tab to:

• Mark as Read or Unread' U or Shift + I 
• Archive or Unarchive E
• Flag as Important + or =
• Mark as Working on It to take ownership

You can do this for single emails, or a whole thread of emails. And if you're sharing an mailbox, the changes only apply to you and not to your colleagues 👍🏼