Restore "Flagged" Folder to sidebar in Big Sur - Mail app

I accidentally removed “Flagged" folder out of sidebar in Mail.

I can create a smart mailbox for flagged emails but that doesn’t provide the dropdown you get from the “built-in” Flagged folder. Of course, all of my flagged email stayed flagged, just no "special" stock Flagged folder.

Any ideas on how to restore this folder?

Thanks in advance!
Mark
Figured it out:

Hit "+" after Favorites in Sidebar then select "Flagged" from list.

I'm liking this new Mail!

PS Big Sur is really stable and usable under heavy load. GREAT JOB APPLE DEVELOPERS and TESTERS!!!!
Just to add for anyone else looking at this.. the "+" button didn't appear for me when Mail was in fullscreen mode. 🤦‍♂️

I also accidentally removed Flagged folder from my Mail sidebar. Nothing I do seems to bring it back. It definitely does not show up as an option when I click on the + sign under Favorites. Any other suggestions?

When I try to add by clicking "+" on right from Favourites, in a side bar, it appears grey, unavailable to choose. Why is that?? I have the most up to date OS. Thanks!

Restore "Flagged" Folder to sidebar in Big Sur - Mail app
 
 
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