VSCode keybindings (with plugin https://marketplace.visualstudio.com/items?itemName=ryuta46.multi-command)

keybindings.json

[
    {
        "key": "ctrl+shift+l",
        "command": "editor.action.transformToLowercase"
    },
    {
        "key": "ctrl+shift+u",
        "command": "editor.action.transformToUppercase"
    },
    {
        "key": "alt+x",
        "command": "extension.multiCommand.execute",
        "args": {
            "command": "multiCommand.makeCodegenFocusTerminal"
        },
        "when": "!terminalFocus"
    },
    {
        "key": "alt+x",
        "command": "workbench.action.terminal.sendSequence",
        "args": {
            "text": "make codegen\n"
        },
        "when": "terminalFocus"
    },
    {
        "key": "alt+v",
        "command": "extension.multiCommand.execute",
        "args": {
            "command": "multiCommand.makeBuildFocusTerminal"
        },
        "when": "!terminalFocus"
    },
    {
        "key": "alt+v",
        "command": "workbench.action.terminal.sendSequence",
        "args": {
            "text": "make build\n"
        },
        "when": "terminalFocus"
    },
]

settings.json

// MultiCommand
  "multiCommand.commands": [
    {
      "command": "multiCommand.makeCodegenFocusTerminal",
      "sequence": [
        "workbench.action.terminal.focus",
        "workbench.action.focusActiveEditorGroup",
        {
          "command": "workbench.action.terminal.sendSequence",
          "args": {
            "text": "make codegen\n"
          }
        }
      ]
    },    
    {
      "command": "multiCommand.makeBuildFocusTerminal",
      "sequence": [
        "workbench.action.terminal.focus",
        "workbench.action.focusActiveEditorGroup",
        {
          "command": "workbench.action.terminal.sendSequence",
          "args": {
            "text": "make build\n"
          }
        }
      ]
    }
  ],