Gallery and Folders
More options
Pinning a folder
Pin a frequently used folder to the sidebar menu.
Pin the folder you work with most often. Then you’ll have it in the sidebar menu, no matter where you are in the app.
Select Pin
In the gallery, hover over the folder row, click the three dots, and choose Pin.

You can unpin a folder the same way: in its action menu, choose Unpin. You can also pin your own album.
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