画面分割

• 以下のような設定を加える
• 詳細は：https://github.com/microsoft/terminal/issues/532

 {
      "command" : "splitHorizontal",
      "keys" : 
      [
          "ctrl+shift+-"
      ]
  },
  {
      "command" : "splitVertical",
      "keys" : 
      [
          "ctrl+shift+E"
      ]
  },

参考

https://devblogs.microsoft.com/commandline/windows-terminal-preview-v0-7-release/