icingaweb2-module-director/application/views/scripts/config/diff.phtml

<div class="controls">
<?= $this->tabs ?>
<h1><?= $this->escape($this->title) ?></h1>
<span class="action-links" data-base-target="_next">
<?= $this->addLink ?>
</span>
<form action="<?= $this->url ?>" method="GET">
<?= $this->formSelect(
    'left',
    $this->leftSum,
    array('class' => 'autosubmit', 'style' => 'width: 37%'),
    array(null => $this->translate('- please choose -')) + $this->configs
)
?>
<?= $this->qlink(
    '',
    $this->url(),
    array(
        'left'  => $this->rightSum,
        'right' => $this->leftSum
    ),
    array('class' => 'icon-flapping')
) ?>
<?= $this->formSelect(
    'right',
    $this->rightSum,
    array('class' => 'autosubmit', 'style' => 'width: 37%'),
    array(null => $this->translate('- please choose -')) + $this->configs
)
?>
</form>
</div>

<div class="content" data-base-target="_next">
<?php if (count($this->table)): ?>
<div>
<?= $this->table->render() ?>
</div>
<?php endif ?>
</div>