     <tr>
                <td class="legend-control-column">S7</td>
                <td class="legend-explanation-column">Next perspective.</td>
            </tr>
            <tr>
                <td class="legend-control-column">S8</td>
                <td class="legend-explanation-column">Next project.</td>
            </tr>
            <tr>
                <td class="legend-control-column">S9</td>
                <td class="legend-explanation-column">Shift tracks to previous page.</td>
            </tr>
