Show only flagged mails (with conversation view) in Outlook

Without any customization, viewing flagged mails as conversations is tricky and requires multiple clicks.

One easy way to get it in 1 click is to

  1. first create a custom view to show only flagged mails…see:
  2. Next, in that custom view, group by Conversation (view settings)

Just use arrow keys to navigate flagged items and right arrow to expand conversations and “insert” to mark items complete.