pma/templates/database/central_columns/add_column.twig

<table class="central_columns_add_column" class="navigation nospacing nopadding">
    <tr>
        <td class="navigation_separator largescreenonly"></td>
        <td class="central_columns_navigation">
            {{ icon|raw }}
            <form id="add_column" action="db_central_columns.php" method="post">
                {{ Url_getHiddenInputs(db)}}
                <input type="hidden" name="add_column" value="add">
                <input type="hidden" name="pos" value="{{ pos }}" />
                <input type="hidden" name="total_rows" value="{{ total_rows }}"/>
                {{ table_drop_down|raw }}
                <select name="column-select" id="column-select">
                    <option value="" selected="selected">{% trans 'Select a column.' %}</option>
                </select>
            </form>
        </td>
        <td class="navigation_separator largescreenonly"></td>
    </tr>
</table>