How do I export and import keyboard shortcut ??

I don't see there is an entry for export and import .

Because I am using jupyter spark docker image now , usually need start a fresh new container . It is really really very inconvenient to set keyboard shortcut every time .

I found https://jupyter-notebook.readthedocs.io/en/stable/examples/Notebook/Custom%20Keyboard%20Shortcuts.html .
But how can I set shortcut in a config file so that I can build a docker image which have the setting by default ?

I have checked all `notebook.json` files on my PC, none of them contained shortcut settings .

Found unstable method : https://jupyter-notebook.readthedocs.io/en/stable/extending/keymaps.html

There is also a method about modifying `custom.js` in https://stackoverflow.com/a/32159304/1637673 , but the syntax seems different with current one.

Start by reviewing the linked Custom Keyboard Shortcuts and keymaps documentation, then inspect how shortcut settings relate to notebook.json and custom.js in a Docker-based Jupyter Notebook setup. Done should mean there is a documented, supported way to preserve or import keyboard shortcuts when building or starting a fresh container.

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