Ciao Giacomo,
non è previsto da configurazione, devi modificare opportunamente il codice in layout/header.php:
54 <div class="container-fluid">
55
56 <a href="<?php echo $CFG->wwwroot;?>"><?php if ($haslogo) {
57 echo html_writer::empty_tag('img', array('src'=>$PAGE->theme->settings->logo, 'class'=>'logo')); }
58
59 else { ?><a class="brand" href="<?php echo $CFG->wwwroot;?>"><?php echo $SITE->shortname; }?></a>
60
61 <a class="btn btn-navbar" data-toggle="workaround-collapse" data-target=".nav-collapse">
62 <span class="icon-bar"></span>
63 <span class="icon-bar"></span>
64 <span class="icon-bar"></span>
65 </a>
66 <?php echo $OUTPUT->user_menu(); ?>
HTH,
Matteo