Vi mode (READ: Allow selection keys to be rebound to different keys)

[sapphire41]

Description of the new feature/enhancement

This issue suggests implementing a "Vi mode" similar to the very convenient one implemented by Alacritty, where the user can
move the cursor around, select and copy text using the keyboard alone in a fashion familiar to most programmers and power users;

• The user presses a predefined keyboard shortcut to enter Vi mode
• Once in Vi mode, the cursor is movable in the current terminal buffer using Vi motions (h j k l)
• 'V' enters visual mode, where text can be selected and copied ('y')
• '/' and '?' enter search mode where text can be searched and then copied

[zadjii-msft]

OH HEY LOOK GUYS, SOMEONE WHO WANTED TO REBIND THE MARK MODE KEYBINDINGS

Sorry, that's not directed at you, that's directed at the team. We've been having this discussion for a while now. @DHowett @carlos-zamora

linking to #10824, #715, #2840, #5804

[zadjii-msft]

Also linking this to #9301, #11084, #9301 and MOST IMPORTANTLY #5790.

We discussed today and had ideas for:

• different keymaps
• keybindings that can switch between those keymaps
• allowing the selection keybindings to get rebound
• minimizing the appearance of all the selection keybindings in the SUI. Either use the SUI to pick between "Default, vi, emacs" selection bindings, or use the json to edit manually.

I'm gonna leave this open to track the third bullet point, because we agree we're open to the idea of rebinding the keys, so long as the SUI impact is relatively low (it's something like 12-30 actions in the SUI, which is a lot).

[sisrfeng]

:term of neovim is easy to use, and I use neovim-remote and abduco, making the register easier to use (do not need to specify a register for most time)

I do not use tmux anymore

[ghost]

Really looking forward to this

[xuejiaW]

+1
I have tried to use Poweroys keyboard manager + markmode to work around this feature, something like remapping "ctrl+h" to "arrow left"

but no luck, once i press "ctrl+h", the mark mode will exit, so it not works