TextBox (Beta)

TextBox is cmux's rich terminal input surface for composing prompts before sending them to a terminal.

Defaults

The TextBox settings live in Settings > TextBox:

• Show TextBox on New Terminals opens new workspaces, terminal tabs, and terminal splits with the TextBox visible while keeping focus in the terminal.
• Focus TextBox on New Terminals puts keyboard focus in the TextBox. Focusing also shows the TextBox.
• TextBox Max Lines caps the TextBox height before its content scrolls.

cmux.json

Set the same defaults in ~/.config/cmux/cmux.json under terminal:

{
  "terminal": {
    "showTextBoxOnNewTerminals": true,
    "focusTextBoxOnNewTerminals": false,
    "textBoxMaxLines": 10
  }
}

Restored sessions keep their saved TextBox visibility and focus state. These defaults apply only to newly created terminal surfaces.