[mr.Travel]

Just open /includes/class_bbcode.php

Find:

PHP Code:

            //[INDENT]
            $tag_list['no_option']['indent'] = array(
                'html' => '<blockquote>%1$s</blockquote>',
                'strip_empty' => true,
                'strip_space_after' => 1
            ); 


Add after:

PHP Code:

// [table]

            $tag_list['no_option']['table'] = array(
                'html' => '<table>%1$s</table>',
                'strip_empty' => true,
                'strip_space_after' => 1
            );
// [td]

            $tag_list['no_option']['td'] = array(
                'html' => '<td>%1$s</td>',
                'strip_empty' => true,
                'strip_space_after' => 1
            );

// [tr]

            $tag_list['no_option']['tr'] = array(
                'html' => '<tr>%1$s</tr>',
                'strip_empty' => true,
                'strip_space_after' => 1
            ); 


Simple for Wemasters like HTML

<table>
	<tr>
		<td>tab 1</td>
		<td>tab 2</td>
	</tr>
	<tr>
		<td>tab 3</td>
		<td>tab 4</td>
	</tr>
	<tr>
		<td>tab 5</td>
		<td>tab 6</td>
	</tr>
</table>

[table]
	[tr]
		[td]tab 1[/td]
		[td]tab 2[/td]
	[/tr]
	[tr]
		[td]tab 3[/td]
		[td]tab 4[/td]
	[/tr]
	[tr]
		[td]tab 5[/td]
		[td]tab 6[/td]
	[/tr]
[/table]