 <td><code>if</code></td>
                <td>Conditional expression</td>
                <td>expression</td>
                <td>No</td>
                <td><code>yes</code></td>
                <td>
                </td>
            </tr>
            <tr>
                <td><code>merge</code></td>
                <td>Merge method</td>
                <td>text</td>
                <td>No</td>
                <td><code>&quot;inherit&quot;</code></td>
                <td>
                    <code>append</c