alt+arrow shortcut does not work

[Chuong98CC]

Summary

Try to use the shortcut Alt-Up/Down for editor:MoveLineUp/Down but does not work.
This works in VSCode so no problem with keyboard or OS.
Instead if change the shortcut to Ctrl+Up/Down then it works.

Keymap.json

  {
    "context": "Editor",
    "bindings": {
      // "j k": ["workspace::SendKeystrokes", "escape"]
      "alt-shift-up": "editor::DuplicateLineUp", // this does not work
      "alt-shift-down": "editor::DuplicateLineDown", // this does not work
      "alt-up": "editor::MoveLineUp", // this does not work
      "ctrl-down": "editor::MoveLineDown", // this works
    }
  }

Steps to trigger the problem:

1. open code
2. move cursor to anyline
3. press alt-up/down arrow

Actual Behavior:
No thing changes
Expected Behavior:
Move line up or down.

Zed Version and System Specs

Zed: v0.174.6 (Zed)
OS: macOS 15.3.0
Memory: 16 GiB
Architecture: aarch64