In Jupyter Notebook, **redo** should be done with `Ctrl+Y` **by default** but not with `Ctrl+Shift+Z`.

[hyperkai]

In Jupyter Notebook, redo is done with Ctrl+Shift+Z by default but not with Ctrl+Y.
Actually in many apps and platforms, Ctrl+Y is used to redo so a lot of people intuitively try to redo with Ctrl+Y in them.
And, pressing 2 buttons is easier than pressing 3 buttons.
So in Jupyter Notebook, redo should be done with Ctrl+Y by default but not with Ctrl+Shift+Z.

[krassowski]

I would suggest to focus discussion in on jupyterlab/jupyterlab#17786

[RRosio]

Closing this in favor or continuing the discussion in the JupyterLab issue.