VSCode Copilot Chat | How to change shortcut key?

If your hit "Enter", the prompt is sent. However, for Copilot better understanding a longer prompt, it is good to use new lines to separate paragraphs. I hope, by default, hitting "Enter" means "new line" instead of "Send prompt".

TL;DR

WARNING: GitHub Copilot Chat plugin still hasn't reached stable, so the solutions below would out of date quickly, especially the GUI one. Follow it with your own understanding.

Option 1: Using GUI

1. VS Code -> File -> Preferences -> Keyboard Shortcuts
2. Search workbench.action.chat.submit, change it to Ctrl + Enter or anything you like.
3. Search workbench.action.chat.submitSecondaryAgent, change it to Ctrl + Alt + Enter or anything you like.

The result in "Keyboard Shortcuts" page:

The result in GUI:

Option 2: Using keybindings.json

(This method could not override existing keybindings)

1. Open the Command Palette in Visual Studio Code by pressing Cmd+Shift+P on your Mac.
2. Type Preferences: Open Keyboard Shortcuts (JSON) and select it.

Add the following JSON configuration to the keybindings.json file (GitHub Copilot Chat v0.23.1):

// Place your key bindings in this file to override the defaults
[
    // Add new keybindings
      {
        "key": "ctrl+enter",
        "command": "workbench.action.chat.submit",
        "when": "chatInputHasText && inChatInput && !chatSessionRequestInProgress && chatLocation != 'editing-session'"
      },

    // remove default keybindings
    // without these, the default keybindings will still work
      {
        "key": "enter",
        "command": "-workbench.action.chat.submit",
        "when": "chatInputHasText && inChatInput && !chatSessionRequestInProgress && chatLocation != 'editing-session'"
      }
    ]

(GitHub Copilot Chat v0.22.2):

// Place your key bindings in this file to override the defaults
[
// Add new keybindings
  {
    "key": "ctrl+enter",
    "command": "workbench.action.chat.submit",
    "when": "chatInputHasText && inChatInput && !chatSessionRequestInProgress && chatLocation != 'editing-session' || chatInputHasText && inChatInput && !chatSessionRequestInProgress && !isApplyingChatEdits && chatLocation == 'editing-session'"
  },
  {
    "key": "ctrl+alt+enter",
    "command": "workbench.action.chat.submitSecondaryAgent",
    "when": "chatInputHasText && inChatInput && !chatInputHasAgent && !chatSessionRequestInProgress"
  },

// remove default keybindings
// without these, the default keybindings will still work
  {
    "key": "enter",
    "command": "-workbench.action.chat.submit",
    "when": "chatInputHasText && inChatInput && !chatSessionRequestInProgress && chatLocation != 'editing-session' || chatInputHasText && inChatInput && !chatSessionRequestInProgress && !isApplyingChatEdits && chatLocation == 'editing-session'"
  },
  {
    "key": "ctrl+enter",
    "command": "-workbench.action.chat.submitSecondaryAgent",
    "when": "chatInputHasText && inChatInput && !chatInputHasAgent && !chatSessionRequestInProgress"
  }
]