[Harald_T]

@Bernd: This is possible.

Please find in your showthread_template:

<if condition="$show['editpoll']"><div><label for="ao_edp"><input type="radio" name="do" id="ao_edp" value="editpoll" />$vbphrase[edit_poll]</label></div></if>

right after this insert following code:

<if condition="$show['movethread']">
<div>
<label for="ao_feat">
<input type="radio" name="do" id="ao_feat" value="feat" />Feature
</label>
</div>
</if>
<if condition="$show['movethread']">
<div>
<label for="ao_unfeat">
<input type="radio" name="do" id="ao_unfeat" value="unfeat" />Unfeature
</label>
</div>
</if>

That's almost all.

To make the unfeature function work, change the code of the plugin "gallery_featured" to:

if ($_POST['do'] == 'feat')
{

if (!can_moderate($threadinfo['forumid'], 'caneditthreads'))
	{
		print_no_permission();
	}
	
	// check if there is a forum password and if so, ensure the user has it set
	verify_forum_password($foruminfo['forumid'], $foruminfo['password']);

$db->query_write("UPDATE " . TABLE_PREFIX . "thread SET featured=1 WHERE threadid ='$threadid'");


$vbulletin->url = 'showthread.php?' . $vbulletin->session->vars['sessionurl'] . "t=$threadid";
	eval(print_standard_redirect('',true,true));
}
if ($_POST['do'] == 'unfeat')
{

if (!can_moderate($threadinfo['forumid'], 'caneditthreads'))
	{
		print_no_permission();
	}
	
	// check if there is a forum password and if so, ensure the user has it set
	verify_forum_password($foruminfo['forumid'], $foruminfo['password']);

$db->query_write("UPDATE " . TABLE_PREFIX . "thread SET featured=0 WHERE threadid ='$threadid'");


$vbulletin->url = 'showthread.php?' . $vbulletin->session->vars['sessionurl'] . "t=$threadid";
	eval(print_standard_redirect('',true,true));
}

That should do it.