/td>
      <td>Toggle title bar</td>
    </tr>
  </tbody>

  <tbody>
    <tr>
      <td>
        <kbd>Space</kbd>
      </td>
      <td>Show note tooltip</td>
    </tr>
    <tr>
      <td>
        <kbd>'</kbd><br>(<em>apostrophe</em>, or <em>single-quote</em> key)
      </td>
      <td>Show all link lines</td>
    </tr>
  </tbody>

  <tbody>
    <tr>
      <td>
        <kbd class="compound">
          <kbd>Shift</kbd>+<kbd>F5</kbd>–<kbd>F8</kbd>
        </kbd>
      </td>
      <td>Save window layout 1–