Here are some tips for the New Outlook to make your operating experience better.
How to Disable the focused inbox
1. Click the settings button on the top right of Outlook > Mail > Layout
2. Set Focused Inbox to Don't sort my messages
How to group your messages into conversations
1. Click View > Messages > Conversations.
2. Choose between Group into conversations or Show each message separately
How to add a shared mailbox
1. right-click on the account name or shared with me folder in the left navigation pane, and then choose Add shared folder or mailbox.
2. In the Add shared folder or mailbox. dialog box, type the name or email address of the shared mailbox, and then click Add.
Note: Saving an attachment to the S: drive does not work.
You will get the message shown below.