Using New Outlook on Windows for personal email, calendar, and contact management
After about half an hour and trying several things I found the Ctrl+Shift+V shortcut works in the reading list but not when a message is "popped out".
This is a change as with "legacy" Outlook I moved from one "popped out" message to the next, often not returning to the reading list. With "New Outlook" this no longer works.
I am trying working directly from the reading list and that does seem to be working - though it is a change.