<form method="post" action="<?php
            echo $di->helpdeskStrategy->assembleUrl([
                'page_id' => 'view',
                'action' => 'changestatus',
                'ticket' => $ticket->ticket_mask
            ], 'inside-pages')
            ?>">
    <?php echo $this->formSelect('status', $ticket->status, null, HelpdeskTicket::getStatusOptions()) ?>
    <input type="hidden" name="c" value="helpdesk" />
    <input type="hidden" name="a" value="changestatus" />
    <input type="hidden" name="ticket" value="<?php echo $ticket->ticket_mask ?>" />
    <input type="submit" value="<?php __e('Change') ?>" />
</form>