Ok, thanks a lot, it works

See post below. Thanks

Update. That's very strange ... now I can see the "Import Folder" menu option.
I tried to import the Neon Gallery folder, but what I see is the folder structure without any images inside.

Hello Dmitry, thanks for your reply.

Unlucky I cannot see the "Import Folder" option, my menu shows only "Add Folder" and "Add ZIP Pack".