Can I duplicate Boards or move decks/cards to other boards?

meanwhile I have a very extensive board, which unfortunately is not very handable.
Now I would like to divide the many stacks of a board with little effort into different boards.

(How) Is it possible to move the stacks into other boards?
(How) Is it possible to duplicate a board?
(How) Is it possible to export and import stacks?

Or is there any other solution for my request?

I would be very happy about some help.

Translated with (free version)

As far as I know this is currently not possible, except if you hack the database.

But some of it will be possible (very) soon:

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Moving cards and cloning boards is possible starting with Deck 1.0