Confusion regarding legal keys in keymap #837

Im trying to generate a keymap that plays well with Windows Terminal, but so far its a mixed bag. And it looks to me that some key-combinations are not loaded correctly.

The things im trying to accomplish is

1: change/rotate focus of panel
2: open tab/buffer in editor
3: close tab/buffer in editor
4: change/rotate editor buffer

I am aware that some key-combinations are "swallowed" by the terminal so if some are known i would love that

Tested on

Platform Win11
Shell: Cmd/Powershell
Windows Terminal and Cmd Standalone

harlequin --version
C:\Users\esk\AppData\Roaming\uv\tools\harlequin\Lib\site-packages\click\core.py:1193: UserWarning: The parameter -u is used more than once. Remove its duplicate as parameters should be unique.
  parser = self.make_parser(ctx)
C:\Users\esk\AppData\Roaming\uv\tools\harlequin\Lib\site-packages\click\core.py:1186: UserWarning: The parameter -u is used more than once. Remove its duplicate as parameters should be unique.
  self.parse_args(ctx, args)
harlequin, version 2.1.2

Installed Adapters:
  - duckdb, version 2.1.2
  - sqlite, version 2.1.2
  - postgres, version 1.2.0

I only using the default profile and used the KeyMapEditor to generate a keymap, and loaded it with --keymap-name Keymap

Expectation:

Being able to provide a combination of almost all keys in the KeyMapEditor and have tem perform the operations they are linked too.

Actual behaviour:

When trying to add some key combinations, only some hare registered in full. Trying to assigne ctrl+shift+t to code_editor.new_buffer only seems to register ctrl+t. My manully editing the keymapconfig to

[[keymaps.Keymap]]
keys = "ctrl+shift+t"
action = "code_editor.new_buffer"

It will show up correctly in the KeyMapEditor, but the in-app-key list shows it as shift+t. Now the combination ctrl+shift+left seems to work in the editor for text-area-purposes, but does not work for the app it self. I have tries both in the Windows Terminal powershell, and in a standalone CMD instance.

For code_editor.next_buffer i have tried to assign ctrl+shift+pageown. The KeyMapEditor doest respond to this at all, so i tried manuelly editing again:

[[keymaps.Keymap]]
keys = "ctrl+shift+pagedown"
action = "code_editor.next_buffer"

This works in CMD, but not in Windows Terminal. And it shows as shift+pgdn in the in-app-keys-list.

It seems to be universal for ctrl+shift+<letter> and ctrl+alt+<direction>

Any experience with Windows terminal and keypresses and any known limitaions with textual?